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Xiang S, Yan W, Ren X, Feng J, Zu X. Role of ferroptosis and ferroptosis-related long non'coding RNA in breast cancer. Cell Mol Biol Lett 2024; 29:40. [PMID: 38528461 DOI: 10.1186/s11658-024-00560-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 03/15/2024] [Indexed: 03/27/2024] Open
Abstract
Ferroptosis, a therapeutic strategy for tumours, is a regulated cell death characterised by the increased accumulation of iron-dependent lipid peroxides (LPO). Tumour-associated long non-coding RNAs (lncRNAs), when combined with traditional anti-cancer medicines or radiotherapy, can improve efficacy and decrease mortality in cancer. Investigating the role of ferroptosis-related lncRNAs may help strategise new therapeutic options for breast cancer (BC). Herein, we briefly discuss the genes and pathways of ferroptosis involved in iron and reactive oxygen species (ROS) metabolism, including the XC-/GSH/GPX4 system, ACSL4/LPCAT3/15-LOX and FSP1/CoQ10/NAD(P)H pathways, and investigate the correlation between ferroptosis and LncRNA in BC to determine possible biomarkers related to ferroptosis.
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Affiliation(s)
- Shasha Xiang
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Wen Yan
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Xing Ren
- Department of Clinical Laboratory Medicine, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China
| | - Jianbo Feng
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
| | - Xuyu Zu
- Cancer Research Institute, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, China.
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2
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Fang X, Chen J, Meng F, Chen F, Chen X, Wang Y, Fang X, Zhang C, Song C. Linc-smad7 is involved in the regulation of lipid synthesis in mouse mammary epithelial cells. Int J Biol Macromol 2024; 262:129875. [PMID: 38320638 DOI: 10.1016/j.ijbiomac.2024.129875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 01/13/2024] [Accepted: 01/23/2024] [Indexed: 02/08/2024]
Abstract
Long intergenic non-coding RNA(lincRNA) is transcribed from the intermediate regions of coding genes and plays a pivotal role in the regulation of lipid synthesis. N6-methyladenosine (m6A) modification is widely prevalent in eukaryotic mRNAs and serves as a regulatory factor in diverse biological processes. This study aims to delineate the mechanism by which Linc-smad7 mediates m6A methylation to regulate milk fat synthesis. Tissue expression analysis in this study revealed a high expression of Linc-smad7 in breast tissue during pregnancy. Cell proliferation assays, including CCK8 and EdU assays, demonstrated that Linc-smad7 had no significant impact on the proliferation of mammary epithelial cells. However, during mammary epithelial cell differentiation, the overexpression of Linc-smad7 led to reduced lipid formation, whereas interference with Linc-smad7 promoted lipogenesis. Mechanistically, Linc-smad7 was found to modulate RNA m6A levels, as evidenced by dot blot assays and methylated RNA immunoprecipitation sequencing (MeRIP-Seq). Subsequent validation through RT-qPCR corroborated these findings, aligning with the m6A sequencing outcomes. Furthermore, co-transfection experiments elucidated that Linc-smad7 regulates lipid synthesis in mammary epithelial cells by influencing the expression of METTL14. In summary, these findings underscore the regulatory role of Linc-smad7 in controlling METTL14 gene expression, thereby mediating m6A modifications to regulate lipid synthesis in mammary epithelial cells.
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Affiliation(s)
- Xue Fang
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Junhao Chen
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Fantong Meng
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Fang Chen
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Xi Chen
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Yanhong Wang
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Xingtang Fang
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Chunlei Zhang
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China.
| | - Chengchuang Song
- Institute of Cellular and Molecular Biology, School of Life Science, Jiangsu Normal University, Xuzhou 221116, China.
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3
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Aljedaie MM, Alam P. In silico identification of human microRNAs pointing centrin genes in Leishmania donovani: Considering the RNAi-mediated gene control. Front Genet 2024; 14:1329339. [PMID: 38390455 PMCID: PMC10883313 DOI: 10.3389/fgene.2023.1329339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 12/12/2023] [Indexed: 02/24/2024] Open
Abstract
Leishmaniasis, a parasitic disease caused by different species of the protozoa parasite Leishmania, is a neglected tropical human disease that is endemic in about a hundred countries worldwide. According to the World Health Organization (WHO), the annual incidence of cutaneous leishmaniasis (CL) is estimated to be 0.7-1.2 million cases globally, whereas the annual incidence of visceral leishmaniasis is estimated to be 0.2-0.4 million cases. In many eukaryotic organisms, including human beings and protozoan parasites, centrin genes encode proteins that play essential roles within the centrosome or basal body. Human microRNAs (miRNAs) have been linked to several infectious and non-infectious diseases associated with pathogen-host interactions, and they play the emphatic roles as gene expression regulators. In this study, we used the MirTarget bioinformatics tool, which is a machine learning-based approach implemented in miRDB, to predict the target of human miRNAs in Leishmania donovani centrin genes. For cross-validation, we utilized additional prediction algorithms, namely, RNA22 and RNAhybrid, targeting all five centrin isotypes. The centrin-3 (LDBPK_342160) and putative centrin-5 (NC_018236.1) genes in L. donovani were targeted by eight and twelve human miRNAs, respectively, among 2,635 known miRNAs (miRBase). hsa-miR-5193 consistently targeted both genes. Using TargetScan, TarBase, miRecords, and miRTarBase, we identified miRNA targets and off-targets in human homologs of centrin, inflammation, and immune-responsive genes. Significant targets were screened based on GO terminologies and KEGG pathway-enrichment analysis (Log10 p-value >0.0001). In silico tools that predict the biological roles of human miRNAs as primary gene regulators in pathogen-host interactions help unravel the regulatory patterns of these miRNAs, particularly in the early stages of inflammatory responses. It is also noted that these miRNAs played an important role in the late phase of adaptive immune response, inclusively their impacts on the immune system's response to L. donovani.
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Affiliation(s)
- Manei M Aljedaie
- Department of Biology, College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Pravej Alam
- Department of Biology, College of Sciences and Humanities, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
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Sheng J, Luo Y, Lv E, Liang H, Tao H, Yu C, Rao D, Sun M, Xia L, Huang W. LINC01980 induced by TGF-beta promotes hepatocellular carcinoma metastasis via miR-376b-5p/E2F5 axis. Cell Signal 2023; 112:110923. [PMID: 37827344 DOI: 10.1016/j.cellsig.2023.110923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/26/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
Hepatocellular carcinoma (HCC) is one of the most aggressive human malignancies worldwide. However, the molecular mechanism of HCC metastasis is largely unknown. Long non-coding RNA (lncRNA) plays a key role in gene regulation, and dysregulation of lncRNA is critical to cancer metastasis. LINC01980 has been reported in ESCC recently, but the mechanism underlying its function in HCC is still unknown. In this study, we found that LINC01980 was upregulated and associated with notably poor overall survival in HCC patients. Functionally, LINC01980 played a carcinogenic role and promoted HCC metastasis. Mechanically, LINC01980 enhanced the E2F5 expression via competitively binding miR-376b-5p, thereby inducing epithelial-mesenchymal transition and promoting HCC cells migration and invasion. In addition, LINC01980-mediated HCC cells metastasis was dependent on E2F5. What's more, TGF-β activated LINC01980 transcription through the canonical TGF-β/SMAD signaling pathway in HCC. In conclusion, LINC01980, activated by the canonical TGF-β/SMAD pathway, promoted HCC metastasis via miR-376b-5p/E2F5 axis. Therefore, LINC01980 might be a potential prognostic biomarker and therapeutic target of HCC.
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Affiliation(s)
- Jiaqi Sheng
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Clinical Medicine Research Center for Hepatic Surgery of Hubei Province, Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, Hubei 430030, China; Key Laboratory of Hubei Province for Digestive System Disease, Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yiming Luo
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Clinical Medicine Research Center for Hepatic Surgery of Hubei Province, Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, Hubei 430030, China
| | - Enjun Lv
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Clinical Medicine Research Center for Hepatic Surgery of Hubei Province, Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, Hubei 430030, China
| | - Huifang Liang
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Clinical Medicine Research Center for Hepatic Surgery of Hubei Province, Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, Hubei 430030, China
| | - Haisu Tao
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Clinical Medicine Research Center for Hepatic Surgery of Hubei Province, Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, Hubei 430030, China
| | - Chengpeng Yu
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Clinical Medicine Research Center for Hepatic Surgery of Hubei Province, Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, Hubei 430030, China
| | - Dean Rao
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Clinical Medicine Research Center for Hepatic Surgery of Hubei Province, Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, Hubei 430030, China
| | - Mengyu Sun
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Limin Xia
- Department of Gastroenterology, Institute of Liver and Gastrointestinal Diseases, Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Wenjie Huang
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Clinical Medicine Research Center for Hepatic Surgery of Hubei Province, Key Laboratory of Organ Transplantation, Ministry of Education and Ministry of Public Health, Wuhan, Hubei 430030, China.
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Hussen BM, Hidayat HJ, Abdullah SR, Mohamadtahr S, Rasul MF, Samsami M, Taheri M. Role of long non-coding RNAs and TGF-β signaling in the regulation of breast cancer pathogenesis and therapeutic targets. Cytokine 2023; 170:156351. [PMID: 37657235 DOI: 10.1016/j.cyto.2023.156351] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/03/2023]
Abstract
The cytokine known as transforming growth factor (TGF) is essential for cell development, differentiation, and apoptosis in BC. TGF-β dysregulation can either promote or inhibit tumor development, and it is a key signaling pathway in BC spread. A recently identified family of ncRNAs known as lncRNAs has received a great deal of effort and is an important regulator of many cellular processes, including transcription of genes, chromatin remodeling, progression of the cell cycle, and posttranscriptional processing. Furthermore, both TGF-β signaling and lncRNAs serve as important early-stage biomarkers for BC diagnosis and prognosis and also play a significant role in BC drug resistance. According to recent studies, lncRNAs can regulate TGF-β by modulating its cofactors in BC. However, the particular functions of lncRNAs and the TGF-β pathway in controlling BC progression are not well understood yet. This review explores the lncRNAs' functional properties in BC as tumor suppressors or oncogenes in the regulation of genes, with a focus on dysregulated TGF-β signaling. Further, we emphasize the functional roles of lncRNAs and TGF-β pathway in the progression of BC to discover new treatment strategies and better comprehend the fundamental cellular pathways.
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Affiliation(s)
- Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Kurdistan Region, Erbil, Iraq; Department of Biomedical Sciences, Cihan University-Erbil, Erbil, Kurdistan Region 44001, Iraq
| | - Hazha Jamal Hidayat
- Department of Biology, College of Education, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Snur Rasool Abdullah
- Department of Medical Laboratory Science, College of Health Sciences, Lebanese French University, Kurdistan Region, Erbil, Iraq
| | - Sayran Mohamadtahr
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Kurdistan Region, Erbil, Iraq
| | - Mohammad Fatih Rasul
- Department of Pharmaceutical Basic Science, Faculty of Pharmacy, Tishk International University, Erbil, Kurdistan Region, Iraq
| | - Majid Samsami
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany; Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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6
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Liu S, Shi G, Pan Z, Cheng W, Xu L, Lin X, Lin Y, Zhang L, Ji G, Lv X, Wang D. Integrated Bioinformatics Analysis for the Identification of Key lncRNAs, mRNAs, and Potential Drugs in Clear Cell Renal Cell Carcinomas. Int J Gen Med 2023; 16:2063-2080. [PMID: 37275334 PMCID: PMC10238222 DOI: 10.2147/ijgm.s409711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 05/18/2023] [Indexed: 06/07/2023] Open
Abstract
Purpose The overall survival of clear cell renal cell carcinoma (ccRCC) is poor. Markers for early detection and progression could improve disease outcomes. This study aims to reveal the potential pathogenesis of ccRCC by integrative bioinformatics analysis and to further develop new therapeutic strategies. Patients and Methods RNA-seq data of 530 ccRCC cases in TCGA were downloaded, and a comprehensive analysis was carried out using bioinformatics tools. Another 14 tissue samples were included to verify the expression of selected lncRNAs by qRT-PCR. DGIdb database was used to screen out potential drugs, and molecular docking was used to explore the interaction and mechanism between candidate drugs and targets. Results A total of 58 differentially expressed lncRNAs (DElncRNAs) and 660 differentially expressed mRNAs (DEmRNAs) were identified in ccRCC. LINC02038, FAM242C, LINC01762, and PVT1 were identified as the optimal diagnostic lncRNAs, of which PVT1 was significantly correlated with the survival rate of ccRCC. GO analysis of cell components showed that DEmRNAs co-expressed with 4 DElncRNAs were mainly distributed in the extracellular area and the plasma membrane, involved in the transport of metal ions, the transport of proteins across membranes, and the binding of immunoglobulins. Immune infiltration analysis showed that MDSC was the most correlated immune cells with PVT1 and key mRNA SIGLEC8. Validation analysis showed that GABRD, SIGLEC8 and CDKN2A were significantly overexpressed, while ESRRB, ELF5 and UMOD were significantly down-regulated, which was consistent with the expression in our analysis. Furthermore, 84 potential drugs were screened by 6 key mRNAs, of which ABEMACICLIB and RIBOCICLIB were selected for molecular docking with CDKN2A, with stable binding affinity. Conclusion In summary, 4 key lncRNAs and key mRNAs of ccRCC were identified by integrative bioinformatics analysis. Potential drugs were screened for the treatment of ccRCC, providing a new perspective for disease diagnosis and treatment.
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Affiliation(s)
- Sheng Liu
- Department of Urinary Surgery, Taizhou Municipal Hospital Affiliated with Taizhou University, Taizhou, Zhejiang Province, People’s Republic of China
| | - Guanyun Shi
- Department of Urinary Surgery, Taizhou Municipal Hospital Affiliated with Taizhou University, Taizhou, Zhejiang Province, People’s Republic of China
| | - Zhengbo Pan
- Department of Urinary Surgery, Taizhou Municipal Hospital Affiliated with Taizhou University, Taizhou, Zhejiang Province, People’s Republic of China
| | - Weisong Cheng
- Department of Urinary Surgery, Taizhou Municipal Hospital Affiliated with Taizhou University, Taizhou, Zhejiang Province, People’s Republic of China
| | - Linfei Xu
- Department of Urinary Surgery, Taizhou Municipal Hospital Affiliated with Taizhou University, Taizhou, Zhejiang Province, People’s Republic of China
| | - Xingzhang Lin
- Department of Urinary Surgery, Taizhou Municipal Hospital Affiliated with Taizhou University, Taizhou, Zhejiang Province, People’s Republic of China
| | - Yongfeng Lin
- Department of Urinary Surgery, Taizhou Municipal Hospital Affiliated with Taizhou University, Taizhou, Zhejiang Province, People’s Republic of China
| | - Liming Zhang
- Department of Urinary Surgery, Taizhou Municipal Hospital Affiliated with Taizhou University, Taizhou, Zhejiang Province, People’s Republic of China
| | - Guanghua Ji
- Department of Urinary Surgery, Taizhou Municipal Hospital Affiliated with Taizhou University, Taizhou, Zhejiang Province, People’s Republic of China
| | - Xin Lv
- Department of Urinary Surgery, Taizhou Municipal Hospital Affiliated with Taizhou University, Taizhou, Zhejiang Province, People’s Republic of China
| | - Dongguo Wang
- Department of Central Laboratory, Taizhou Municipal Hospital Affiliated with Taizhou University, Taizhou, Zhejiang Province, People’s Republic of China
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Zheng S, Fu W, Huang Q, Zhou J, Lu K, Gu J, Ma R, Guo G. LncRNA PRKCQ-AS1 regulates paclitaxel resistance in triple-negative breast cancer cells through miR-361-5p/PIK3C3 mediated autophagy. Clin Exp Pharmacol Physiol 2023; 50:431-442. [PMID: 36732923 DOI: 10.1111/1440-1681.13758] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/04/2023]
Abstract
Paclitaxel (PTX) resistance is a key cause of chemotherapy failure in patients with triple negative breast cancer (TNBC). The aim of this study is to investigate the effect and mechanism of long non-coding RNA (lncRNA) on the PTX resistance of TNBC cells through autophagy. MDA-MB-231 cells are used to induce the PTX-resistant TNBC cell line MDA-MB-231.PR (MDR) by increasing dose intermittently. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to validate the mRNA levels of phosphoinositide-3-kinase class 3 (PIK3C3), miR-361-5p and lncRNA PRKCQ-AS1 in the cells, and Western blot analysis was used to detect the protein expressions of PIK3C3, autophagy-related, drug-resistant and apoptosis-related genes. MDC staining detected the formation of autophagic vacuoles. The interactions between miR-361-5p and PIK3C3 and between lncRNA PRKCQ-AS1 and miR-361-5p were verified by dual-luciferase assay. Cell viability, apoptosis, migration and invasion were assessed by performing MTT, flow cytometry assay, and transwell assay. The mRNA level of miR-361-5p and the autophagy and drug resistance levels of TNBC PTX-resistant cells were significantly up-regulated. miR-361-5p could target autophagy-related gene PIK3C3, and overexpression of miR-361-5p could down-regulate PIK3C3 protein expression and autophagy level and PTX resistance of MDR cells. LncRNA PRKCQ-AS1 was selected through bioanalysis, and miR-361-5p could target lncRNA PRKCQ-AS1. In addition, lncRNA PRKCQ-AS1 level was up-regulated in TNBC PTX-resistant cells, and knockdown of lncRNA PRKCQ-AS1 could weaken autophagy and drug resistance level and could promote cell apoptosis. Overexpression of lncRNA PRKCQ-AS1 reversed the pro-apoptotic effect and down-regulation of autophagy and resistance levels was induced by miR-361-5p. In vivo experiments were performed to verify the role of lncRNA PRKCQ-AS1. We demonstrate that down-regulation of lncRNA PRKCQ-AS1 weakened PTX resistance and promoted cell apoptosis by miR-361-5p/PIK3C3 mediated autophagy.
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Affiliation(s)
- Shurong Zheng
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Weida Fu
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qidi Huang
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jieyu Zhou
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Kangkang Lu
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Junwei Gu
- Department of Breast Surgery, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Ruimin Ma
- Department of Breast Surgery, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Guilong Guo
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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8
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LINC02381 suppresses cell proliferation and promotes apoptosis via attenuating IGF1R/PI3K/AKT signaling pathway in breast cancer. Funct Integr Genomics 2023; 23:40. [PMID: 36648607 DOI: 10.1007/s10142-023-00965-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 01/01/2023] [Accepted: 01/03/2023] [Indexed: 01/18/2023]
Abstract
Identification of the genes and genetic networks involved in breast cancer development is a major need for prevention and therapy. LINC02381 (lncRNA) has already been introduced as a tumor suppressor in colorectal and gastric cancers. Here, we intended to investigate its potential functional effects on breast cancer. In the analysis performed on RNA-Seq and microarray data, the LINC02381 lncRNA was found to be significantly downregulated in the breast tumors and associated with poor survival of the patients. Then, the differential expression of LINC02381 was confirmed in breast tumor tissues and cancer cell lines using RT-qPCR. Overexpression of LINC02381 resulted in reduced IGF1R and p-AKT expression levels which indicates decreased PI3K pathway activity, detected by RT-qPCR and western blotting. At the cellular level, LINC02381 overexpression was followed by a decreased proliferation rate of transfected breast cell lines, detected by PI flow cytometry, RT-qPCR, colony formation, and MTT assays. Consistently, the results of Annexin-V/PI flow cytometry, RT-qPCR, caspase3/7 activity, and AO/EB-H33342/PI dual staining revealed that LINC02381 overexpression induced apoptosis and cell death. The reduced migration rate of these cells was also verified through wound healing assay and RT-qPCR against the EMT-involved genes. Our data show that LINC02381 exerts its tumor suppressor effect at least partly through attenuation of the IGF1R/PI3K/AKT signaling pathway, which originated from IGF1R downregulation.
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9
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Kong X, Yan K, Deng P, Fu H, Sun H, Huang W, Jiang S, Dai J, Zhang QC, Liu JJG, Xi Q. LncRNA-Smad7 mediates cross-talk between Nodal/TGF-β and BMP signaling to regulate cell fate determination of pluripotent and multipotent cells. Nucleic Acids Res 2022; 50:10526-10543. [PMID: 36134711 PMCID: PMC9561265 DOI: 10.1093/nar/gkac780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Revised: 08/14/2022] [Accepted: 09/01/2022] [Indexed: 11/12/2022] Open
Abstract
Transforming growth factor β (TGF-β) superfamily proteins are potent regulators of cellular development and differentiation. Nodal/Activin/TGF-β and BMP ligands are both present in the intra- and extracellular milieu during early development, and cross-talk between these two branches of developmental signaling is currently the subject of intense research focus. Here, we show that the Nodal induced lncRNA-Smad7 regulates cell fate determination via repression of BMP signaling in mouse embryonic stem cells (mESCs). Depletion of lncRNA-Smad7 dramatically impairs cardiomyocyte differentiation in mESCs. Moreover, lncRNA-Smad7 represses Bmp2 expression through binding with the Bmp2 promoter region via (CA)12-repeats that forms an R-loop. Importantly, Bmp2 knockdown rescues defects in cardiomyocyte differentiation induced by lncRNA-Smad7 knockdown. Hence, lncRNA-Smad7 antagonizes BMP signaling in mESCs, and similarly regulates cell fate determination between osteocyte and myocyte formation in C2C12 mouse myoblasts. Moreover, lncRNA-Smad7 associates with hnRNPK in mESCs and hnRNPK binds at the Bmp2 promoter, potentially contributing to Bmp2 expression repression. The antagonistic effects between Nodal/TGF-β and BMP signaling via lncRNA-Smad7 described in this work provides a framework for understanding cell fate determination in early development.
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Affiliation(s)
- Xiaohui Kong
- MOE Key Laboratory of Protein Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Kun Yan
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Pujuan Deng
- School of Life Sciences, Tsinghua-Peking Joint Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing 100084, China
| | - Haipeng Fu
- MOE Key Laboratory of Protein Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Hongyao Sun
- Joint Graduate Program of Peking-Tsinghua-NIBS, Tsinghua University, Beijing 100084, China
| | - Wenze Huang
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China.,MOE Key Laboratory of Bioinformatics, Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Center for Synthetic and Systems Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Shuangying Jiang
- CAS Key Laboratory of Quantitative Engineering Biology, Guangdong Provincial Key Laboratory of Synthetic Genomics and Shenzhen Key Laboratory of Synthetic Genomics, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Junbiao Dai
- CAS Key Laboratory of Quantitative Engineering Biology, Guangdong Provincial Key Laboratory of Synthetic Genomics and Shenzhen Key Laboratory of Synthetic Genomics, Shenzhen Institute of Synthetic Biology, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Qiangfeng Cliff Zhang
- Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China.,MOE Key Laboratory of Bioinformatics, Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Center for Synthetic and Systems Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Jun-Jie Gogo Liu
- School of Life Sciences, Tsinghua-Peking Joint Center for Life Sciences, Beijing Advanced Innovation Center for Structural Biology, Tsinghua University, Beijing 100084, China
| | - Qiaoran Xi
- MOE Key Laboratory of Protein Sciences, School of Life Sciences, Tsinghua University, Beijing 100084, China
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10
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Tang PCT, Zhang YY, Li JSF, Chan MKK, Chen J, Tang Y, Zhou Y, Zhang D, Leung KT, To KF, Tang SCW, Lan HY, Tang PMK. LncRNA-Dependent Mechanisms of Transforming Growth Factor-β: From Tissue Fibrosis to Cancer Progression. Noncoding RNA 2022; 8:ncrna8030036. [PMID: 35736633 PMCID: PMC9227532 DOI: 10.3390/ncrna8030036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/19/2022] [Accepted: 05/21/2022] [Indexed: 11/16/2022] Open
Abstract
Transforming growth factor-β (TGF-β) is a crucial pathogenic mediator of inflammatory diseases. In tissue fibrosis, TGF-β regulates the pathogenic activity of infiltrated immunocytes and promotes extracellular matrix production via de novo myofibroblast generation and kidney cell activation. In cancer, TGF-β promotes cancer invasion and metastasis by enhancing the stemness and epithelial mesenchymal transition of cancer cells. However, TGF-β is highly pleiotropic in both tissue fibrosis and cancers, and thus, direct targeting of TGF-β may also block its protective anti-inflammatory and tumor-suppressive effects, resulting in undesirable outcomes. Increasing evidence suggests the involvement of long non-coding RNAs (lncRNAs) in TGF-β-driven tissue fibrosis and cancer progression with a high cell-type and disease specificity, serving as an ideal target for therapeutic development. In this review, the mechanism and translational potential of TGF-β-associated lncRNAs in tissue fibrosis and cancer will be discussed.
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Affiliation(s)
- Philip Chiu-Tsun Tang
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Hong Kong 999077, China; (P.C.-T.T.); (J.S.-F.L.); (M.K.-K.C.); (K.-F.T.)
| | - Ying-Ying Zhang
- Department of Nephrology, Tongji University School of Medicine, Shanghai 200065, China;
| | - Jane Siu-Fan Li
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Hong Kong 999077, China; (P.C.-T.T.); (J.S.-F.L.); (M.K.-K.C.); (K.-F.T.)
| | - Max Kam-Kwan Chan
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Hong Kong 999077, China; (P.C.-T.T.); (J.S.-F.L.); (M.K.-K.C.); (K.-F.T.)
| | - Jiaoyi Chen
- Division of Nephrology, Department of Medicine, The University of Hong Kong, Hong Kong 999077, China; (J.C.); (S.C.-W.T.)
| | - Ying Tang
- Department of Nephrology, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510080, China;
| | - Yiming Zhou
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China;
| | - Dongmei Zhang
- College of Pharmacy, Jinan University, Guangzhou 510632, China;
| | - Kam-Tong Leung
- Department of Paediatrics, The Chinese University of Hong Kong, Hong Kong 999077, China;
| | - Ka-Fai To
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Hong Kong 999077, China; (P.C.-T.T.); (J.S.-F.L.); (M.K.-K.C.); (K.-F.T.)
| | - Sydney Chi-Wai Tang
- Division of Nephrology, Department of Medicine, The University of Hong Kong, Hong Kong 999077, China; (J.C.); (S.C.-W.T.)
| | - Hui-Yao Lan
- Department of Medicine and Therapeutics, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong 999077, China;
| | - Patrick Ming-Kuen Tang
- Department of Anatomical and Cellular Pathology, State Key Laboratory of Translational Oncology, The Chinese University of Hong Kong, Hong Kong 999077, China; (P.C.-T.T.); (J.S.-F.L.); (M.K.-K.C.); (K.-F.T.)
- Correspondence:
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11
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Maldotti M, Lauria A, Anselmi F, Molineris I, Tamburrini A, Meng G, Polignano IL, Scrivano MG, Campestre F, Simon LM, Rapelli S, Morandi E, Incarnato D, Oliviero S. The acetyltransferase p300 is recruited in trans to multiple enhancer sites by lncSmad7. Nucleic Acids Res 2022; 50:2587-2602. [PMID: 35137201 PMCID: PMC8934626 DOI: 10.1093/nar/gkac083] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 01/23/2022] [Accepted: 01/25/2022] [Indexed: 12/13/2022] Open
Abstract
The histone acetyltransferase p300 (also known as KAT3B) is a general transcriptional coactivator that introduces the H3K27ac mark on enhancers triggering their activation and gene transcription. Genome-wide screenings demonstrated that a large fraction of long non-coding RNAs (lncRNAs) plays a role in cellular processes and organ development although the underlying molecular mechanisms remain largely unclear (1,2). We found 122 lncRNAs that interacts directly with p300. In depth analysis of one of these, lncSmad7, is required to maintain ESC self-renewal and it interacts to the C-terminal domain of p300. lncSmad7 also contains predicted RNA-DNA Hoogsteen forming base pairing. Combined Chromatin Isolation by RNA precipitation followed by sequencing (ChIRP-seq) together with CRISPR/Cas9 mutagenesis of the target sites demonstrate that lncSmad7 binds and recruits p300 to enhancers in trans, to trigger enhancer acetylation and transcriptional activation of its target genes. Thus, these results unveil a new mechanism by which p300 is recruited to the genome.
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Affiliation(s)
- Mara Maldotti
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy.,Italian Institute for Genomic Medicine (IIGM), Sp142 Km 3.95, 10060 Candiolo (Torino), Italy
| | - Andrea Lauria
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy.,Italian Institute for Genomic Medicine (IIGM), Sp142 Km 3.95, 10060 Candiolo (Torino), Italy
| | - Francesca Anselmi
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy.,Italian Institute for Genomic Medicine (IIGM), Sp142 Km 3.95, 10060 Candiolo (Torino), Italy
| | - Ivan Molineris
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy.,Italian Institute for Genomic Medicine (IIGM), Sp142 Km 3.95, 10060 Candiolo (Torino), Italy
| | - Annalaura Tamburrini
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy.,Italian Institute for Genomic Medicine (IIGM), Sp142 Km 3.95, 10060 Candiolo (Torino), Italy
| | - Guohua Meng
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy.,Italian Institute for Genomic Medicine (IIGM), Sp142 Km 3.95, 10060 Candiolo (Torino), Italy
| | - Isabelle Laurence Polignano
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy.,Italian Institute for Genomic Medicine (IIGM), Sp142 Km 3.95, 10060 Candiolo (Torino), Italy
| | - Mirko Giuseppe Scrivano
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy
| | - Fabiola Campestre
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy
| | - Lisa Marie Simon
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy
| | - Stefania Rapelli
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy.,Italian Institute for Genomic Medicine (IIGM), Sp142 Km 3.95, 10060 Candiolo (Torino), Italy
| | - Edoardo Morandi
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy
| | - Danny Incarnato
- Department of Molecular Genetics, Groningen Biomolecular Sciences and Biotechnology Institute (GBB), University of Groningen, Nijenborgh 7, 9747 AG Groningen, The Netherlands
| | - Salvatore Oliviero
- Dipartimento di Scienze della Vita e Biologia dei Sistemi and MBC, Università di Torino, Via Nizza 52, 10126 Torino, Italy.,Italian Institute for Genomic Medicine (IIGM), Sp142 Km 3.95, 10060 Candiolo (Torino), Italy
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12
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Tang D, Li Y, Tang Y, Zheng H, Luo W, Li Y, Li Y, Wang Z, Wu S. Recognition of Glycometabolism-Associated lncRNAs as Prognosis Markers for Bladder Cancer by an Innovative Prediction Model. Front Genet 2022; 13:918705. [PMID: 35928440 PMCID: PMC9343799 DOI: 10.3389/fgene.2022.918705] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 06/14/2022] [Indexed: 02/05/2023] Open
Abstract
The alteration of glycometabolism is a characteristic of cancer cells. Long non-coding RNAs (lncRNAs) have been documented to occupy a considerable position in glycometabolism regulation. This research aims to construct an effective prediction model for the prognosis of bladder cancer (BC) based on glycometabolism-associated lncRNAs (glyco-lncRNAs). Pearson correlation analysis was applied to get glyco-lncRNAs, and then, univariate cox regression analysis was employed to further filtrate survival time-associated glyco-lncRNAs. Multivariate cox regression analysis was utilized to construct the prediction model to divide bladder cancer (BC) patients into high- and low-risk groups. The overall survival (OS) rates of these two groups were analyzed using the Kaplan-Meier method. Next, gene set enrichment analysis and Cibersortx were used to explore the enrichment and the difference in immune cell infiltration, respectively. pRRophetic algorithm was applied to explore the relation between chemotherapy sensitivity and the prediction model. Furthermore, reverse transcriptase quantitative polymerase chain reaction was adopted to detect the lncRNAs constituting the prediction signature in tissues and urine exosomal samples of BC patients. A powerful model including 6 glyco-lncRNAs was proposed, capable of suggesting a risk score for each BC patient to predict prognosis. Patients with high-risk scores demonstrated a shorter survival time both in the training cohort and testing cohort, and the risk score could predict the prognosis without depending on the traditional clinical traits. The area under the receiver operating characteristic curve of the risk score was higher than that of other clinical traits (0.755 > 0.640, 0.485, 0.644, or 0.568). The high- and low-risk groups demonstrated very distinct immune cells infiltration conditions and gene set enriched terms. Besides, the high-risk group was more sensitive to cisplatin, docetaxel, and sunitinib. The expression of lncRNA AL354919.2 featured with an increase in low-grade patients and a decrease in T3-4 and Stage III-IV patients. Based on the experiment results, lncRNA AL355353.1, AC011468.1, and AL354919.2 were significantly upregulated in tumor tissues. This research furnishes a novel reference for predicting the prognosis of BC patients, assisting clinicians with help in the choice of treatment.
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Affiliation(s)
- Dongdong Tang
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
- Institute of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen University, Shenzhen, China
| | - Yangyang Li
- Institute of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen University, Shenzhen, China
| | - Ying Tang
- Institute of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen University, Shenzhen, China
- Luohu Clinical Medicine School, Shantou University Medical College, Shantou University, Shantou, China
| | - Haoxiang Zheng
- Institute of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen University, Shenzhen, China
| | - Weihan Luo
- Institute of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen University, Shenzhen, China
- Luohu Clinical Medicine School, Shantou University Medical College, Shantou University, Shantou, China
| | - Yuqing Li
- Institute of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen University, Shenzhen, China
- Luohu Clinical Medicine School, Shantou University Medical College, Shantou University, Shantou, China
| | - Yingrui Li
- Institute of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen University, Shenzhen, China
| | - Zhiping Wang
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
- *Correspondence: Zhiping Wang, ; Song Wu,
| | - Song Wu
- Department of Urology, Lanzhou University Second Hospital, Lanzhou, China
- Institute of Urology, The Third Affiliated Hospital of Shenzhen University (Luohu Hospital Group), Shenzhen University, Shenzhen, China
- Luohu Clinical Medicine School, Shantou University Medical College, Shantou University, Shantou, China
- South China Hospital, Health Science Center, Shenzhen University, Shenzhen, China
- *Correspondence: Zhiping Wang, ; Song Wu,
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13
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Shen S, Liang J, Liang X, Wang G, Feng B, Guo W, Guo Y, Dong Z. SNHG17, as an EMT-related lncRNA, promotes the expression of c-Myc by binding to c-Jun in esophageal squamous cell carcinoma. Cancer Sci 2021; 113:319-333. [PMID: 34714590 PMCID: PMC8748231 DOI: 10.1111/cas.15184] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 12/16/2022] Open
Abstract
Dysregulation of long noncoding RNA SNHG17 is associated with the occurrence of several tumors; however, its role in esophageal squamous cell carcinoma (ESCC) remains obscure. The present study demonstrated that SNHG17 was upregulated in ESCC tissues and cell lines, induced by TGF‐β1, and associated with poor survival. It is also involved in the epithelial‐to‐mesenchymal transition (EMT) process. The mechanism underlying SNHG17‐regulated c‐Myc was detected by RNA immunoprecipitation, RNA pull‐down, chromatin immunoprecipitation, and luciferase reporter assays. SNHG17 was found to directly regulate c‐Myc transcription by binding to c‐Jun protein and recruiting the complex to specific sequences of the c‐Myc promoter region, thereby increasing its expression. Moreover, SNHG17 hyperactivation induced by TGF‐β1 results in PI3K/AKT pathway activation, promoting cells EMT, forming a positive feedback loop. Furthermore, SNHG17 facilitated ESCC tumor growth in vivo. Overall, this study demonstrated that the SNHG17/c‐Jun/c‐Myc axis aggravates ESCC progression and EMT induction by TGF‐β1 and may serve as a new therapeutic target for ESCC.
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Affiliation(s)
- Supeng Shen
- the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jia Liang
- the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xiaoliang Liang
- Laboratory of Pathology, Hebei Cancer Institute, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Gaoyan Wang
- the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Bo Feng
- Laboratory of Pathology, Hebei Cancer Institute, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wei Guo
- Laboratory of Pathology, Hebei Cancer Institute, the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yanli Guo
- the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zhiming Dong
- the Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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14
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Zampedri C, Martínez-Flores WA, Melendez-Zajgla J. The Use of Zebrafish Xenotransplant Assays to Analyze the Role of lncRNAs in Breast Cancer. Front Oncol 2021; 11:687594. [PMID: 34123857 PMCID: PMC8190406 DOI: 10.3389/fonc.2021.687594] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/04/2021] [Indexed: 12/19/2022] Open
Abstract
Breast cancer represents a great challenge since it is the first cause of death by cancer in women worldwide. LncRNAs are a newly described class of non-coding RNAs that participate in cancer progression. Their use as cancer markers and possible therapeutic targets has recently gained strength. Animal xenotransplants allows for in vivo monitoring of disease development, molecular elucidation of pathogenesis and the design of new therapeutic strategies. Nevertheless, the cost and complexities of mice husbandry makes medium to high throughput assays difficult. Zebrafishes (Danio rerio) represent a novel model for these assays, given the ease with which xenotransplantation trials can be performed and the economic and experimental advantages it offers. In this review we propose the use of xenotransplants in zebrafish to study the role of breast cancer lncRNAs using low to medium high throughput assays.
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Affiliation(s)
- Cecilia Zampedri
- Functional Genomics Laboratories, Instituto Nacional de Medicina Genomica, Mexico City, Mexico
| | | | - Jorge Melendez-Zajgla
- Functional Genomics Laboratories, Instituto Nacional de Medicina Genomica, Mexico City, Mexico
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15
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Ashrafizadeh M, Shahinozzaman M, Orouei S, Zarrin V, Hushmandi K, Hashemi F, Kumar A, Samarghandian S, Najafi M, Zarrabi A. Crosstalk of long non-coding RNAs and EMT: Searching the missing pieces of an incomplete puzzle for lung cancer therapy. Curr Cancer Drug Targets 2021; 21:640-665. [PMID: 33535952 DOI: 10.2174/1568009621666210203110305] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 11/02/2020] [Accepted: 11/20/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Lung cancer is considered to be the first place among the cancer-related deaths worldwide and demands novel strategies in the treatment of this life-threatening disorder. The aim of this review is to explore regulation of epithelial-to-mesenchymal transition (EMT) by long non-coding RNAs (lncRNAs) in lung cancer. INTRODUCTION LncRNAs can be considered as potential factors for targeting in cancer therapy, since they regulate a bunch of biological processes, e.g. cell proliferation, differentiation and apoptosis. The abnormal expression of lncRNAs occurs in different cancer cells. On the other hand, epithelial-to-mesenchymal transition (EMT) is a critical mechanism participating in migration and metastasis of cancer cells. METHOD Different databases including Googlescholar, Pubmed and Sciencedirect were used for collecting articles using keywords such as "LncRNA", "EMT", and "Lung cancer". RESULT There are tumor-suppressing lncRNAs that can suppress EMT and metastasis of lung cancer cells. Expression of such lncRNAs undergoes down-regulation in lung cancer progression and restoring their expression is of importance in suppressing lung cancer migration. There are tumor-promoting lncRNAs triggering EMT in lung cancer and enhancing their migration. CONCLUSION LncRNAs are potential regulators of EMT in lung cancer, and targeting them, both pharmacologically and genetically, can be of importance in controlling migration of lung cancer cells.
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Affiliation(s)
- Milad Ashrafizadeh
- Faculty of Engineering and Natural Sciences, Sabanci University, Orta Mahalle, Üniversite Caddesi No. 27, Orhanlı, Tuzla, 34956 Istanbul. Turkey
| | - Md Shahinozzaman
- Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742. United States
| | - Sima Orouei
- Department of Genetics Science, Tehran Medical Sciences Branch, Islamic Azad University, Tehran. Iran
| | - Vahideh Zarrin
- Laboratory for Stem Cell Research, Shiraz University of Medical Sciences, Shiraz. Iran
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology & Zoonoses, Faculty of Veterinary Medicine, University of Tehran, Tehran. Iran
| | - Farid Hashemi
- Department of Comparative Biosciences, Faculty of Veterinary Medicine, University of Tehran, Tehran. Iran
| | - Anuj Kumar
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541. Korea
| | - Saeed Samarghandian
- Noncommunicable Diseases Research Center, Neyshabur University of Medical Sciences, Neyshabur. Iran
| | - Masoud Najafi
- Medical Technology Research Center, Institute of Health Technology, Kermanashah University of Medical Sciences, Kermanshah 6715847141. Iran
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, 34956, Istanbul. Turkey
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16
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Hao A, Wang Y, Zhang X, Li J, Li Y, Li D, Kulik G, Sui G. Long non-coding antisense RNA HYOU1-AS is essential to human breast cancer development through competitive binding hnRNPA1 to promote HYOU1 expression. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2021; 1868:118951. [PMID: 33422616 DOI: 10.1016/j.bbamcr.2021.118951] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 12/08/2020] [Accepted: 12/30/2020] [Indexed: 11/30/2022]
Abstract
Triple negative breast cancer (TNBC) has poor prognosis due to lack of biomarker and therapeutic target. Emerging research has revealed long noncoding RNAs (lncRNAs) are involved in breast cancer progression, but their functions and regulatory mechanisms remain poorly understood, especially in TNBC. In this study, we performed lncRNA microarray analysis of five TNBC samples and their matched normal tissues, and discovered a number of differentially expressed lncRNAs. We identified an antisense lncRNA, HYOU1-AS, which is transcribed from the opposite strand of the hypoxia up-regulated 1 (HYOU1) gene, enriched in the nucleus and highly expressed in TNBC. HYOU1-AS knockdown could inhibit the proliferation and migration of the TNBC MDA-MB-231 cells, and reduce their xenograft tumor formation in nude mice. In mechanistic studies, we found that HYOU1-AS could promote the expression of HYOU1, a proliferative gene, through competitively binding to hnRNPA1, an RNA-binding protein, to relieve its post-transcriptional inhibition of the HYOU1 mRNA. Consistently, increased HYOU1 levels correlated with poor clinical outcomes of breast cancer patients based on our study of the TCGA database. Overall, our data indicated that the lncRNA HYOU1-AS promoted TNBC progression through upregulating HYOU1.
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Affiliation(s)
- Aixin Hao
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Yu Wang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Xiao Zhang
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Jialiang Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Yingzhou Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - Dangdang Li
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin 150040, China
| | - George Kulik
- Department of Life Sciences, Alfaisal University, Riyadh 11533, Saudi Arabia
| | - Guangchao Sui
- Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Ministry of Education, College of Life Science, Northeast Forestry University, Harbin 150040, China.
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17
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Han L, Jia L, Zan Y. Long intergenic noncoding RNA smad7 (Linc-smad7) promotes the epithelial-mesenchymal transition of HCC by targeting the miR-125b/SIRT6 axis. Cancer Med 2020; 9:9123-9137. [PMID: 33037850 PMCID: PMC7724296 DOI: 10.1002/cam4.3515] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 09/06/2020] [Accepted: 09/15/2020] [Indexed: 12/16/2022] Open
Abstract
Long intergenic noncoding RNA smad7 (Linc-smad7) has been recently identified as a new long non-coding RNA (lncRNA). However, the role of Linc-smad7 in the tumourigenesis of human cancers remains unknown. This study uncovered that Linc-smad7 was increased in HCC samples and HCC cell lines using RT-qPCR assays. Furthermore, the overexpression of Linc-smad7 indicated poor clinicopathological features and outcomes for HCC patients. In addition, Linc-smad7 promoted HCC cells proliferation, migration, invasion and EMT, as determined by MTT, colony formation, Transwell assays and western blot analysis. Functionally, it was demonstrated that Linc-smad7 could bind with microRNA-125b (miR-125b), and the restoration of miR-125b rescued the promoting effects of Linc-smad7 on HCC cells. Finally, it was observed that sirtuin 6 (SIRT6) was positively regulated by Linc-smad7 in HCC as the direct target of miR-125b, and decreased SIRT6 reversed the effects of Linc-smad7 on promoting HCC. In conclusion, the current study first identified Linc-smad7 is increased in HCC, facilitating HCC cells proliferation, migration, invasion and EMT via regulating the miR-125b/SIRT6 axis.
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Affiliation(s)
- Lili Han
- Department of OncologyThe Second Affiliated HospitalCollege of MedicineXi'an Jiaotong UniversityXi'anShaanxiChina
| | - Lijun Jia
- Department of OncologyThe Second Affiliated HospitalCollege of MedicineXi'an Jiaotong UniversityXi'anShaanxiChina
| | - Ying Zan
- Department of OncologyThe Second Affiliated HospitalCollege of MedicineXi'an Jiaotong UniversityXi'anShaanxiChina
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18
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Liu X, Wang C. Long non-coding RNA ATB is associated with metastases and promotes cell invasion in colorectal cancer via sponging miR-141-3p. Exp Ther Med 2020; 20:261. [PMID: 33199986 PMCID: PMC7664613 DOI: 10.3892/etm.2020.9391] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 08/21/2020] [Indexed: 12/15/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) serve crucial roles in cancer development and progression. lncRNA-activated by transforming growth factor-β (lncRNA-ATB) mediates cell proliferation. However, the association between lncRNA-ATB and human colorectal cancer (CRC) is not completely understood. Therefore, the present study aimed to investigate the role of lncRNA-ATB in CRC, as well as the underlying mechanism. 50 pairs of tumor tissues and adjacent normal tissues from patients with primary CRC were collected. The expression of lncRNA-ATB and microRNA (miR)-141-3p in CRC tissues, adjacent normal tissues and cell lines was detected using reverse transcription-quantitative PCR. CCK-8, colony formation, Transwell, western blot, dual luciferase reporter gene, RNA immunoprecipitation and immunohistochemistry staining assays were conducted to assess the biological function of lncRNA-ATB and miR-141-3p in CRC progression. lncRNA-ATB was upregulated in CRC tissues and cell lines compared with healthy tissues and cells, respectively. Moreover, high expression of lncRNA-ATB was significantly associated with advanced TNM stage and metastasis in CRC. In addition, the results indicated that lncRNA-ATB expression predicted the prognosis and overall survival of patients with CRC. Compared with small interfering RNA-negative control, lncRNA-ATB knockdown inhibited CRC cell proliferation, migration and invasion, whereas, compared with vector, lncRNA-ATB overexpression promoted CRC cell proliferation, migration and invasion. Furthermore, the in vivo experiment suggested that lncRNA-ATB knockdown inhibited tumor growth. The results also indicated that lncRNA-ATB may contribute to CRC progression via binding to tumor suppressor microRNA-141-3p. Collectively, the present study suggested a crucial role of lncRNA-ATB in CRC tumorigenesis, suggesting that lncRNA-ATB may serve as an important marker for the diagnosis and development of CRC.
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Affiliation(s)
- Xianming Liu
- Department of Gastrointestinal Surgery, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, Guangdong 518020, P.R. China
| | - Cunchuan Wang
- Department of Gastrointestinal Surgery, Guangzhou Overseas Chinese Hospital, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, P.R. China
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19
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Silencing of lncRNA EZR-AS1 inhibits proliferation, invasion, and migration of colorectal cancer cells through blocking transforming growth factor β signaling. Biosci Rep 2020; 39:220864. [PMID: 31693738 PMCID: PMC6851510 DOI: 10.1042/bsr20191199] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 09/24/2019] [Accepted: 10/07/2019] [Indexed: 02/06/2023] Open
Abstract
Long non-coding RNA (lncRNA) plays a key regulatory role in the pathogenesis of colorectal cancer (CRC). In the present study, the specific regulatory role of lncRNA ezrin antisense RNA 1 (EZR-AS1) on CRC was investigated. The expression of lncRNA EZR-AS1 was significantly up-regulated in CRC cell lines (HCT8, HCT116, HT29, and SW620 cells), which was significantly different from that of normal human fetal colonic mucosa cells (FHC cells) (P<0.01). HCT116 and HT29 cells were then transfected with EZR-AS1 shRNA (sh-EZR-AS1) to silence lncRNA EZR-AS1 (P<0.01). When compared with the Control, after transfection of SH-EZR-AS1, E-cadherin was up-regulated, Vimentin was down-regulated, the apoptosis rate was increased, the cell viability, wound healing rate, and the number of invasive cells were decreased in HCT116 and HT29 cells (P<0.05). Silencing of lncRNA EZR-AS also significantly reduced the tumor volume and weight in mice injected with sh-EZR-AS1-transfected HCT116 and HT29 cells (P<0.05). The regulatory relationship between lncRNA EZR-AS1 and transforming growth factor β (TGF-β) signaling was further identified in CRC cells. Silencing of lncRNA EZR-AS1 significantly down-regulated TGF-β, Smad2, and α-SMA expression in HCT116 and HT29 cells at the protein level (P<0.05). The intervention of SB431542 (a TGF-β receptor blocker) and silencing of Smad2 both significantly down-regulated lncRNA EZR-AS1 expression in HCT116 and HT29 cells (P<0.01). In conclusion, silencing of lncRNA EZR-AS1 inhibited the proliferation, invasion, migration, and epithelial–mesenchymal transition, and promoted the apoptosis of CRC cells through blocking TGF-β signaling.
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20
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Papoutsoglou P, Moustakas A. Long non-coding RNAs and TGF-β signaling in cancer. Cancer Sci 2020; 111:2672-2681. [PMID: 32485023 PMCID: PMC7419046 DOI: 10.1111/cas.14509] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 12/11/2022] Open
Abstract
Cancer is driven by genetic mutations in oncogenes and tumor suppressor genes and by cellular events that develop a misregulated molecular microenvironment in the growing tumor tissue. The tumor microenvironment is guided by the excessive action of specific cytokines including transforming growth factor-β (TGF-β), which normally controls embryonic development and the homeostasis of young or adult tissues. As a consequence of the genetic alterations generating a given tumor, TGF-β can preserve its homeostatic function and attempt to limit neoplastic expansion, whereas, once the tumor has progressed to an aggressive stage, TGF-β can synergize with various oncogenic stimuli to facilitate tumor invasiveness and metastasis. TGF-β signaling mechanisms via Smad proteins, various ubiquitin ligases, and protein kinases are relatively well understood. Such mechanisms regulate the expression of genes encoding proteins or non-coding RNAs. Among non-coding RNAs, much has been understood regarding the regulation and function of microRNAs, whereas the role of long non-coding RNAs is still emerging. This article emphasizes TGF-β signaling mechanisms leading to the regulation of non-coding genes, the function of such non-coding RNAs as regulators of TGF-β signaling, and the contribution of these mechanisms in specific hallmarks of cancer.
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Affiliation(s)
| | - Aristidis Moustakas
- Department of Medical Biochemistry and MicrobiologyScience for Life LaboratoryUppsala UniversityUppsalaSweden
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21
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Javed Z, Khan K, Iqbal MZ, Ahmad T, Raza Q, Sadia H, Raza S, Salehi B, Sharifi-Rad J, Cho WC. Long non-coding RNA regulation of TRAIL in breast cancer: A tangle of non-coding threads. Oncol Lett 2020; 20:37. [PMID: 32802161 PMCID: PMC7412712 DOI: 10.3892/ol.2020.11896] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 05/05/2020] [Indexed: 02/06/2023] Open
Abstract
Breast cancer is a complex disease posing a serious threat to the female population worldwide. A complex molecular landscape and tumor heterogeneity render breast cancer cells resistant to drugs and able to promote metastasis and invasiveness. Despite the recent advancements in diagnostics and drug discovery, finding an effective cure for breast cancer is still a major challenge. Positive and negative regulation of apoptosis has been a subject of extensive study over the years. Numerous studies have shed light on the mechanisms that impede the tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) signaling cascade. Long non-coding RNAs (lncRNAs) have been implicated in the orchestration, development, proliferation, differentiation and metastasis of breast cancer. However, the roles of lncRNAs in fine-tuning apoptosis regulating machinery in breast cancer remain to be elucidated. The present review illuminates the roles of these molecules in the regulation of breast cancer and the interplay between lncRNA and TRAIL in breast cancer. The present review also attempts to reveal their role in the regulation of apoptosis in breast cancer appears a promising approach for the development of new diagnostic and therapeutic regimens.
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Affiliation(s)
- Zeeshan Javed
- Office for Research Innovation and Commercialization, Lahore Garrison University, Lahore, Punjab 54792, Pakistan
| | - Khushbukhat Khan
- Atta-ur-Rahman School of Applied Biosciences, National University of Sciences and Technology, Islamabad, Punjab 44000, Pakistan
| | - Muhammad Zaheer Iqbal
- Center for Excellence in Molecular Biology, University of the Punjab, Lahore, Punjab 53700, Pakistan
| | - Touqeer Ahmad
- Institute of Microbiology, University of Veterinary and Animal Sciences, Lahore, Punjab 54000, Pakistan
| | - Qamar Raza
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Lahore, Punjab 54000, Pakistan
| | - Haleema Sadia
- Department of Biotechnology, Balochistan University of Information Technology, Engineering and Management Sciences, Quetta, Balochistan 87100, Pakistan
| | - Shahid Raza
- Office for Research Innovation and Commercialization, Lahore Garrison University, Lahore, Punjab 54792, Pakistan
| | - Bahare Salehi
- Noncommunicable Diseases Research Center, Bam University of Medical Sciences, Bam 44340847, Iran.,Student Research Committee, School of Medicine, Bam University of Medical Sciences, Bam 44340847, Iran
| | - Javad Sharifi-Rad
- Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1991953381, Iran
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong SAR, P.R. China
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22
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Yu Y, He Y, Shao Y, Chen Q, Liu H. lncRNA PCNAP1 predicts poor prognosis in breast cancer and promotes cancer metastasis via miR‑340‑5p‑dependent upregulation of SOX4. Oncol Rep 2020; 44:1511-1523. [PMID: 32945462 PMCID: PMC7448480 DOI: 10.3892/or.2020.7699] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 05/25/2020] [Indexed: 12/11/2022] Open
Abstract
The high metastatic rate of breast cancer is the significant cause of its poor prognosis. The long noncoding RNA (lncRNA) proliferating cell nuclear antigen pseudogene 1 (PCNAP1) plays important roles in the initiation and progression of cancers; however, its regulatory function and molecular mechanism in breast cancer metastasis remains unknown. Therefore, we investigated the roles of lncRNA PCNAP1 in breast cancer metastasis by modulating the microRNA (miR)‑340‑5p/SOX4 axis using quantitative real‑time PCR, in vivo mouse models, nucleo‑cytoplasmic separation, western blot analysis, scratch assays, Transwell assays, luciferase reporter assays and MS2‑RIP, in vitro and in vivo. lncRNA PCNAP1 was found to be upregulated in human breast cancer tissues, and high lncRNA PCNAP1 levels predicted poor overall survival. Function assays showed that knockdown of lncRNA PCNAP1 suppressed the migration and invasion of breast cancer cells in vitro and in vivo. Mechanistically, lncRNA PCNAP1 functioned as a competing endogenous (ce)RNA for miR‑340‑5p to facilitate the expression of its target gene SRY‑box transcription factor 4 (SOX4), promoting migration and invasion of breast cancer cells. Overall, we found that lncRNA PCNAP1 predicted a poor prognosis in breast cancer and promoted cancer metastasis via miR‑340‑5p‑dependent upregulation of SOX4 expression. These results suggest that lncRNA PCNAP1 has potential as an alternative therapeutic target to suppress breast cancer metastasis.
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Affiliation(s)
- Yang Yu
- Department of Breast Surgery, Henan Provincial People's Hospital/People's Hospital of Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Yaning He
- Department of Breast Surgery, Henan Provincial People's Hospital/People's Hospital of Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Yingbo Shao
- Department of Breast Surgery, Henan Provincial People's Hospital/People's Hospital of Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Qi Chen
- Department of Breast Surgery, Henan Provincial People's Hospital/People's Hospital of Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
| | - Hui Liu
- Department of Breast Surgery, Henan Provincial People's Hospital/People's Hospital of Zhengzhou University, Zhengzhou, Henan 450003, P.R. China
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23
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Nimsarkar P, Ingale P, Singh S. Systems Studies Uncover miR-146a as a Target in Leishmania major Infection Model. ACS OMEGA 2020; 5:12516-12526. [PMID: 32548436 PMCID: PMC7271362 DOI: 10.1021/acsomega.0c01502] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
Leishmaniasis, the second most neglected tropical disease, has been reported to affect approximately 12 million people worldwide. The causative protozoan parasite Leishmania has shown drug resistance to available chemotherapies, owing to which we need to look for better approaches to deal with the clinical situations. As per recent reports, several miRNAs have been found to be differentially expressed during Leishmania major infection in host macrophages. We aim to evaluate the impact of miRNA-mediated gene regulation on the key players of inflammation and macrophage dysfunction. The origin of Leishmania miRNAs and their processing is a questionable phenomenon as of yet. Through our study, we aim to provide a framework of their characterization. We amalgamate chemical systems biology and synthetic biology approaches to identify putative miRNA targets and unravel the complexity of host-pathogen gene regulatory networks.
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24
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Sun J, Jiang R, Song M, Yao J, Hou S, Zhu Y, Ji X, Sheng H, Tang Z, Liu Q, Jia Z, Shi W, Shi J. Pathological Grade-Associated Transcriptome Profiling of lncRNAs and mRNAs in Gliomas. Front Oncol 2020; 10:253. [PMID: 32211318 PMCID: PMC7076085 DOI: 10.3389/fonc.2020.00253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 02/14/2020] [Indexed: 11/19/2022] Open
Abstract
The aim of the present study was to explore the expression profiles of lncRNAs and mRNAs in glioma patients and to elucidate any potential relationship between lncRNAs and mRNAs in glioma. High-throughput transcriptome sequencing of mRNAs and lncRNAs from six normal tissues and 16 glioma tissues (grade II, six cases; grade III, four cases; and grade IV, six cases) was performed. Series test of cluster (STC) analysis was used to screen significant trending models associated with glioma. Gene co-expression networks were constructed for the differentially expressed lncRNAs and mRNAs, and gene-ontology (GO) and pathway-enrichment analyses were further performed. Quantitative real-time PCR was performed to validate the five most differentially expressed lncRNAs and mRNAs. After filtering the raw sequencing data, we found 578 lncRNAs and 3,216 mRNAs that were significantly dysregulated in glioma (fold change ≥ 2, p < 0.05). Twenty model profiles of lncRNA and 10 model profiles of mRNA were summarized, and three patterns of lncRNAs and two patterns of mRNAs were of clinical significance. Three gene co-expression networks between mRNAs and lncRNAs were built to clarify the relationship between lncRNAs and mRNAs in glioma. GO and pathway analyses indicated that the differentially expressed lncRNAs and mRNAs were enriched in several biological processes and signaling pathways associated with tumorigenesis. Both lncRNAs and mRNAs exhibited dynamic differential expression profiles that indicated their potential roles in different degrees of glioma malignancy. A series of bioinformatics analyses indicated that most of these lncRNAs and mRNAs are involved in important biological processes and pathways associated with the pathogenesis of glioma. These results provide potential directions and valuable resources for future investigations via the comprehensive integration of these lncRNAs and mRNAs.
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Affiliation(s)
- Junlong Sun
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, The Affiliated Hospital of Nantong University, Nantong, China
- Department of Neurosurgery, Shanghai Jiao Tong University School of Medicine Affiliated Renji Hospital, Shanghai, China
- Department of Clinic Research Center, The Affiliated Hospital of Nantong University, Nantong, China
| | - Rui Jiang
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, The Affiliated Hospital of Nantong University, Nantong, China
- Department of Clinic Research Center, The Affiliated Hospital of Nantong University, Nantong, China
| | - Mengruo Song
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, The Affiliated Hospital of Nantong University, Nantong, China
- Department of Clinic Research Center, The Affiliated Hospital of Nantong University, Nantong, China
| | - Junzhong Yao
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, The Affiliated Hospital of Nantong University, Nantong, China
- Department of Clinic Research Center, The Affiliated Hospital of Nantong University, Nantong, China
| | - Shiqiang Hou
- Department of Neurosurgery, Chuzhou Clinical College of Anhui Medical University, The First Peoples Hospital Chuzhou, Chuzhou, China
| | - Yunhua Zhu
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, The Affiliated Hospital of Nantong University, Nantong, China
- Department of Clinic Research Center, The Affiliated Hospital of Nantong University, Nantong, China
| | - Xiang Ji
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, The Affiliated Hospital of Nantong University, Nantong, China
- Department of Clinic Research Center, The Affiliated Hospital of Nantong University, Nantong, China
| | - Hao Sheng
- Department of Clinic Research Center, The Affiliated Hospital of Nantong University, Nantong, China
| | - Zhongyu Tang
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, The Affiliated Hospital of Nantong University, Nantong, China
- Department of Clinic Research Center, The Affiliated Hospital of Nantong University, Nantong, China
| | - Qianqian Liu
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, The Affiliated Hospital of Nantong University, Nantong, China
- Department of Clinic Research Center, The Affiliated Hospital of Nantong University, Nantong, China
| | - Zhongzheng Jia
- Medical Image Center, The Affiliated Hospital of Nantong University, Nantong, China
| | - Wei Shi
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, The Affiliated Hospital of Nantong University, Nantong, China
- Department of Clinic Research Center, The Affiliated Hospital of Nantong University, Nantong, China
| | - Jinlong Shi
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, The Affiliated Hospital of Nantong University, Nantong, China
- Department of Clinic Research Center, The Affiliated Hospital of Nantong University, Nantong, China
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25
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Fang P, Xiang L, Chen W, Li S, Huang S, Li J, Zhuge L, Jin L, Feng W, Chen Y, Pan C. LncRNA GAS5 enhanced the killing effect of NK cell on liver cancer through regulating miR-544/RUNX3. Innate Immun 2020; 25:99-109. [PMID: 30774011 PMCID: PMC6830859 DOI: 10.1177/1753425919827632] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
This study aimed to explore the role of lncRNA GAS5 in the regulation of the
killing effect of NK cells on liver cancer. Compared with a control group,
lncRNA GAS5, RUNX3, and NCR1 were down-regulated in NK cells of patients with
liver cancer, whereas miR-544 expression was up-regulated in NK cells of
patients with liver cancer. Activated NK cells had higher IFN-γ level. Knockdown
of GAS5 in activated NK cells decreased IFN-γ secretion, NK cell cytotoxicity,
the percentage of CD107a+ NK cells, and the apoptosis rate of HepG2 and Huh7
cells. We also proved the interaction of GAS5 and miR-544, and the negative
regulation role of GAS5 on miR-544. GAS5 overexpression in activated NK cells
increased RUNX3 expression, IFN-γ secretion, the NK cell cytotoxicity, the
percentage of CD107a+ NK cells, and the apoptosis rate of HepG2 cells, while
miR-544 mimic abolished the promotion effect of GAS5 overexpression. Finally,
in vivo experiments indicated an inhibition effect of GAS5
in tumor growth. LncRNA GAS5 overexpression enhances the killing effect of NK
cell on liver cancer through regulating miR-544/RUNX3.
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Affiliation(s)
- Peipei Fang
- 1 Department of Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China.,2 Pediatric Hepatitis and Liver disease Clinical Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China
| | - Luxia Xiang
- 1 Department of Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China.,2 Pediatric Hepatitis and Liver disease Clinical Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China.,3 The Second School of Medicine, Wenzhou Medical University, People's Republic of China
| | - Weilai Chen
- 4 Department of Neurology, Wenzhou People's Hospital, People's Republic of China
| | - Shaoxun Li
- 1 Department of Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China.,2 Pediatric Hepatitis and Liver disease Clinical Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China.,3 The Second School of Medicine, Wenzhou Medical University, People's Republic of China
| | - Shanshan Huang
- 1 Department of Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China
| | - Jie Li
- 1 Department of Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China
| | - Lu Zhuge
- 1 Department of Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China
| | - Lingxiang Jin
- 1 Department of Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China
| | - Wenke Feng
- 2 Pediatric Hepatitis and Liver disease Clinical Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China
| | - Yiping Chen
- 2 Pediatric Hepatitis and Liver disease Clinical Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China
| | - Chenwei Pan
- 1 Department of Infectious Disease, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China.,2 Pediatric Hepatitis and Liver disease Clinical Center, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, People's Republic of China
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26
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Morikawa M, Mitani Y, Holmborn K, Kato T, Koinuma D, Maruyama J, Vasilaki E, Sawada H, Kobayashi M, Ozawa T, Morishita Y, Bessho Y, Maeda S, Ledin J, Aburatani H, Kageyama R, Maruyama K, Heldin CH, Miyazono K. The ALK-1/SMAD/ATOH8 axis attenuates hypoxic responses and protects against the development of pulmonary arterial hypertension. Sci Signal 2019; 12:12/607/eaay4430. [PMID: 31719172 DOI: 10.1126/scisignal.aay4430] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Dysregulated bone morphogenetic protein (BMP) signaling in endothelial cells (ECs) is implicated in vascular diseases such as pulmonary arterial hypertension (PAH). Here, we showed that the transcription factor ATOH8 was a direct target of SMAD1/5 and was induced in a manner dependent on BMP but independent of Notch, another critical signaling pathway in ECs. In zebrafish and mice, inactivation of Atoh8 did not cause an arteriovenous malformation-like phenotype, which may arise because of dysregulated Notch signaling. In contrast, Atoh8-deficient mice exhibited a phenotype mimicking PAH, which included increased pulmonary arterial pressure and right ventricular hypertrophy. Moreover, ATOH8 expression was decreased in PAH patient lungs. We showed that in cells, ATOH8 interacted with hypoxia-inducible factor 2α (HIF-2α) and decreased its abundance, leading to reduced induction of HIF-2α target genes in response to hypoxia. Together, these findings suggest that the BMP receptor type II/ALK-1/SMAD/ATOH8 axis may attenuate hypoxic responses in ECs in the pulmonary circulation and may help prevent the development of PAH.
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Affiliation(s)
- Masato Morikawa
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.,Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Box 582, Biomedical Center, Uppsala University, SE-751 23 Uppsala, Sweden.,Ludwig Institute for Cancer Research, Science for Life Laboratory, Box 595, Biomedical Center, Uppsala University, SE-751 24 Uppsala, Sweden
| | - Yoshihide Mitani
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Katarina Holmborn
- Genome Engineering Zebrafish Facility, Science For Life Laboratory, Uppsala University, SE-752 36 Uppsala, Sweden
| | - Taichi Kato
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Daizo Koinuma
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Junko Maruyama
- Department of Anesthesiology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Eleftheria Vasilaki
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Box 582, Biomedical Center, Uppsala University, SE-751 23 Uppsala, Sweden.,Ludwig Institute for Cancer Research, Science for Life Laboratory, Box 595, Biomedical Center, Uppsala University, SE-751 24 Uppsala, Sweden
| | - Hirofumi Sawada
- Department of Pediatrics, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan.,Department of Anesthesiology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Mai Kobayashi
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takayuki Ozawa
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yasuyuki Morishita
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yasumasa Bessho
- Institute for Frontier Life and Medical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
| | - Shingo Maeda
- Department of Medical Joint Materials, Kagoshima University, Kagoshima, Kagoshima 890-8544, Japan
| | - Johan Ledin
- Genome Engineering Zebrafish Facility, Science For Life Laboratory, Uppsala University, SE-752 36 Uppsala, Sweden
| | - Hiroyuki Aburatani
- Genome Science Division, Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan
| | - Ryoichiro Kageyama
- Institute for Frontier Life and Medical Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
| | - Kazuo Maruyama
- Department of Anesthesiology, Mie University Graduate School of Medicine, Tsu, Mie 514-8507, Japan
| | - Carl-Henrik Heldin
- Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Box 582, Biomedical Center, Uppsala University, SE-751 23 Uppsala, Sweden. .,Ludwig Institute for Cancer Research, Science for Life Laboratory, Box 595, Biomedical Center, Uppsala University, SE-751 24 Uppsala, Sweden
| | - Kohei Miyazono
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan. .,Department of Medical Biochemistry and Microbiology, Science for Life Laboratory, Box 582, Biomedical Center, Uppsala University, SE-751 23 Uppsala, Sweden.,Ludwig Institute for Cancer Research, Science for Life Laboratory, Box 595, Biomedical Center, Uppsala University, SE-751 24 Uppsala, Sweden
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27
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Functions and Regulatory Mechanisms of lncRNAs in Skeletal Myogenesis, Muscle Disease and Meat Production. Cells 2019; 8:cells8091107. [PMID: 31546877 PMCID: PMC6769631 DOI: 10.3390/cells8091107] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/04/2019] [Accepted: 09/17/2019] [Indexed: 12/20/2022] Open
Abstract
Myogenesis is a complex biological process, and understanding the regulatory network of skeletal myogenesis will contribute to the treatment of human muscle related diseases and improvement of agricultural animal meat production. Long noncoding RNAs (lncRNAs) serve as regulators in gene expression networks, and participate in various biological processes. Recent studies have identified functional lncRNAs involved in skeletal muscle development and disease. These lncRNAs regulate the proliferation, differentiation, and fusion of myoblasts through multiple mechanisms, such as chromatin modification, transcription regulation, and microRNA sponge activity. In this review, we presented the latest advances regarding the functions and regulatory activities of lncRNAs involved in muscle development, muscle disease, and meat production. Moreover, challenges and future perspectives related to the identification of functional lncRNAs were also discussed.
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Qiu X, Dong J, Zhao Z, Li J, Cai X. LncRNA LINC00668 promotes the progression of breast cancer by inhibiting apoptosis and accelerating cell cycle. Onco Targets Ther 2019; 12:5615-5625. [PMID: 31371999 PMCID: PMC6628964 DOI: 10.2147/ott.s188933] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 03/06/2019] [Indexed: 12/17/2022] Open
Abstract
Objective: To elucidate how lncRNA 00668 (LINC00668) influences the development of breast cancer (BC). Materials and methods: Genome-wide expression profile of BC and paracancerous tissues were downloaded from The Cancer Genome Atlas (TCGA) and BC tissues and paracancerous tissues enrolled from our hospital for analyzing the expression level of LINC00668 and its correlation with prognosis. GSEA was conducted to analyze the potential functions of LINC00668. By transfection of sh-LINC00668 in BC cells, proliferation, apoptosis, cell cycle and colony formation of BC cells were accessed. Western blot was conducted to detect protein expressions of Ki-67, CDK4, Bcl-2, p21 and genes in AKT/mTOR pathways after LINC00668 knockdown in BC cells. Finally, tumor-bearing nude mice were administrated with BC cells. We compared the proliferative rate in mice with different administrations. Immunohistochemistry was carried out to access expression levels of Ki-67, CDK4, Bcl-2 and P21 in mice. Results: Both TCGA data and BC tissues harvested from our hospital indicated the higher expression of LINC00668 in BC tissues. LINC00668 expression was negatively correlated to prognosis of BC patients. GSEA pointed out that LINC00668 is enriched in regulations of cell cycle and apoptosis. By transfection of sh-LINC00668 in MDA-MB-231 and MDA-MB-436 cells, the proliferative and colony formation abilities of BC cells decreased. Besides, LINC00668 knockdown in BC cells induced apoptosis and arrested cell cycle. LINC00668 knockdown downregulated Ki-67, CDK4 and Bcl-2, but upregulated p21. The AKT/mTOR pathway was inhibited after LINC00668 silenced. In vivo experiments demonstrated the decreased proliferative rate in tumor-bearing mice administrated with sh-LINC00668 transfected BC cells. Consistently, immunohistochemical results showed lower positive expressions of Ki-67, CDK4 and Bcl-2, but higher positive expression of p21 in sh-LINC00668 group. Conclusion: LINC00668 is highly expressed in BC tissues and can promote the progression of BC by inhibiting apoptosis and accelerating cell cycle progression.
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Affiliation(s)
- Xia Qiu
- Department of General Surgery, Pudong New Area Gongli Hospital Affiliated to Naval Military Medical University, Shanghai 200135, People's Republic of China
| | - Jiangnan Dong
- Department of General Surgery, Pudong New Area Gongli Hospital Affiliated to Naval Military Medical University, Shanghai 200135, People's Republic of China
| | - Zheng Zhao
- Department of General Surgery, Pudong New Area Gongli Hospital Affiliated to Naval Military Medical University, Shanghai 200135, People's Republic of China
| | - Jun Li
- Department of General Surgery, Pudong New Area Gongli Hospital Affiliated to Naval Military Medical University, Shanghai 200135, People's Republic of China
| | - Xiaoyan Cai
- Department of General Surgery, Pudong New Area Gongli Hospital Affiliated to Naval Military Medical University, Shanghai 200135, People's Republic of China
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Zhang N, Meng X, Mei L, Zhao C, Chen W. LncRNA DLX6-AS1 promotes tumor proliferation and metastasis in osteosarcoma through modulating miR-641/HOXA9 signaling pathway. J Cell Biochem 2019; 120:11478-11489. [PMID: 30838699 DOI: 10.1002/jcb.28426] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 11/30/2018] [Accepted: 12/06/2018] [Indexed: 01/24/2023]
Abstract
Osteosarcoma (OS) is the most common primary malignant bone tumor. Recently, increasing evidence has shown that the long noncoding RNA (lncRNA) DLX6-AS1 (distal-less homeobox 6 antisense 1) plays significant roles in various types of cancers. However, the functions and underlying mechanisms of DLX6-AS1 have not been explored in OS yet. In this study, we assessed the expression of DLX6-AS1 in OS tissues and cell lines and explored the underlying molecular mechanisms. DLX6-AS1 was found to be significantly upregulated in OS tissues and OS cell lines. High expression of DLX6-AS1 was significantly correlated with advanced TNM stage, high tumor grade, and distant metastasis of patients with OS. Knockdown of DLX6-AS1 suppressed OS cell proliferation, invasion, and migration, and induced cell apoptosis. Knockdown of DLX6-AS1 also suppressed in vivo tumor growth. Bioinformatics and luciferase assay analysis showed that DLX6-AS1 functioned as a competing endogenous RNA (ceRNA) to negatively regulate miR-641 expression. Furthermore, miR-641 was found to target the 3' untranslated region of homeobox protein Hox-A9 (HOXA9) and suppressed the expression of HOXA9. Mechanistic studies showed that DLX6-AS1 regulated OS cell proliferation, invasion, and migration via regulating HOXA9 by acting as a ceRNA for miR-641. Our results suggested that DLX6-AS1 functions as a ceRNA by targeting miR-641/HOXA9 signal pathway to suppress OS cell proliferation and metastasis. Our study may provide novel insights into understanding pathogenesis and development of OS.
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Affiliation(s)
- Ning Zhang
- Clinical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Xin Meng
- Clinical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Lijun Mei
- Department of Blood Transfusion, Ankang Central Hospital, Ankang, Shannxi, China
| | - Chedong Zhao
- Clinical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Wei Chen
- Clinical Laboratory, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Long non-coding RNA SNHG16 affects cell proliferation and predicts a poor prognosis in patients with colorectal cancer via sponging miR-200a-3p. Biosci Rep 2019; 39:BSR20182498. [PMID: 30962265 PMCID: PMC6522740 DOI: 10.1042/bsr20182498] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 03/21/2019] [Accepted: 04/03/2019] [Indexed: 12/15/2022] Open
Abstract
Previous study has explored that SNHG16, a long non-coding RNA (lncRNA), mediated cell growth and proliferation. Yet, the role of SNHG16 in human colorectal cancer (CRC) still remains to be explored. Therefore, we conducted the present study to explore the functions of SNHG16 in CRC. In the present study, SNHG16 was significantly up-regulated in CRC tissues and cell lines. Gain- and loss-of-function of SNHG16 further presented that SNHG16 promoted the progression of CRC cells, including proliferation, migration, and invasion. Further, in vivo study also revealed that overexpression of SNHG16 could promote tumor growth. Bioinformatics analysis and luciferase reporter assay showed that SNHG16 was a direct target of miR-200a-3p. MiR-200a-3p was inversely correlated with SNHG16 expression in CRC tissues. In brief, the above results elucidate the important role of SNHG16 in CRC tumorigenesis, suggesting that SNHG16 might be quite vital for the diagnosis and development of CRC.
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Sakai S, Ohhata T, Kitagawa K, Uchida C, Aoshima T, Niida H, Suzuki T, Inoue Y, Miyazawa K, Kitagawa M. Long Noncoding RNA ELIT-1 Acts as a Smad3 Cofactor to Facilitate TGFβ/Smad Signaling and Promote Epithelial-Mesenchymal Transition. Cancer Res 2019; 79:2821-2838. [PMID: 30952633 DOI: 10.1158/0008-5472.can-18-3210] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 02/12/2019] [Accepted: 04/02/2019] [Indexed: 11/16/2022]
Abstract
TGFβ is involved in various biological processes, including development, differentiation, growth regulation, and epithelial-mesenchymal transition (EMT). In TGFβ/Smad signaling, receptor-activated Smad complexes activate or repress their target gene promoters. Smad cofactors are a group of Smad-binding proteins that promote recruitment of Smad complexes to these promoters. Long noncoding RNAs (lncRNA), which behave as Smad cofactors, have thus far not been identified. Here, we characterize a novel lncRNA EMT-associated lncRNA induced by TGFβ1 (ELIT-1). ELIT-1 was induced by TGFβ stimulation via the TGFβ/Smad pathway in TGFβ-responsive cell lines. ELIT-1 depletion abrogated TGFβ-mediated EMT progression and expression of TGFβ target genes including Snail, a transcription factor critical for EMT. A positive correlation between high expression of ELIT-1 and poor prognosis in patients with lung adenocarcinoma and gastric cancer suggests that ELIT-1 may be useful as a prognostic and therapeutic target. RIP assays revealed that ELIT-1 bound to Smad3, but not Smad2. In conjunction with Smad3, ELIT-1 enhanced Smad-responsive promoter activities by recruiting Smad3 to the promoters of its target genes including Snail, other TGFβ target genes, and ELIT-1 itself. Collectively, these data show that ELIT-1 is a novel trans-acting lncRNA that forms a positive feedback loop to enhance TGFβ/Smad3 signaling and promote EMT progression. SIGNIFICANCE: This study identifies a novel lncRNA ELIT-1 and characterizes its role as a positive regulator of TGFβ/Smad3 signaling and EMT.Graphical Abstract: http://cancerres.aacrjournals.org/content/canres/79/11/2821/F1.large.jpg.
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Affiliation(s)
- Satoshi Sakai
- Department of Molecular Biology, Hamamatsu University School of Medicine, Shizuoka, Japan
- Department of Virology and Parasitology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Tatsuya Ohhata
- Department of Molecular Biology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Kyoko Kitagawa
- Department of Molecular Biology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Chiharu Uchida
- Advanced Research Facilities & Services, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Takuya Aoshima
- Laboratory Animal Facilities & Services, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Hiroyuki Niida
- Department of Molecular Biology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Tetsuro Suzuki
- Department of Virology and Parasitology, Hamamatsu University School of Medicine, Shizuoka, Japan
| | - Yasumichi Inoue
- Department of Cell Signaling, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Keiji Miyazawa
- Department of Biochemistry, Graduate School of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Masatoshi Kitagawa
- Department of Molecular Biology, Hamamatsu University School of Medicine, Shizuoka, Japan.
- Laboratory Animal Facilities & Services, Preeminent Medical Photonics Education & Research Center, Hamamatsu University School of Medicine, Shizuoka, Japan
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Zhu G, Liu X, Su Y, Kong F, Hong X, Lin Z. Knockdown of Urothelial Carcinoma-Associated 1 Suppressed Cell Growth and Migration Through Regulating miR-301a and CXCR4 in Osteosarcoma MHCC97 Cells. Oncol Res 2018; 27:55-64. [PMID: 29523218 PMCID: PMC7848290 DOI: 10.3727/096504018x15201143705855] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Liver cancer is one of the most common malignancies in the world and a leading cause of cancer-related mortality. Accumulating evidence has highlighted the critical role of long noncoding RNAs (lncRNAs) in various cancers. The present study aimed to explore the role of lncRNA urothelial carcinoma-associated 1 (UCA1) in cell growth and migration in MHCC97 cells and its underlying mechanism. First, we assessed the expression of UCA1 in MHCC97 and three other cell lines by RT-qPCR. Then the expression of UCA1, miR-301a, and CXCR4 in MHCC97 cells was altered by transient transfection. The effects of UCA1 and miR-301 on cell viability, migration, invasion, and apoptosis were assessed. The results revealed that UCA1 expression was relatively higher in MHCC97 cells than in MG63, hFOB1.19, and OS-732 cells. Knockdown of UCA1 reduced cell viability, inhibited migration and invasion, and promoted cell apoptosis. However, the effect of UCA1 knockdown on cell growth and migration was blocked by miR-301a overexpression, whose expression was regulated by UCA1. We also found that miR-301a positively regulated CXCR4 expression. CXCR4 inhibition reversed the effect of miR-301a overexpression on cell growth and migration. Moreover, miR-301a activated the Wnt/β-catenin and NF-κB pathways via regulating CXCR4. The present study demonstrated that UCA1 inhibition exerted an antigrowth and antimigration role in MHCC97 cells through regulating miR-301a and CXCR4 expression.
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Affiliation(s)
- Genglong Zhu
- *Department of Hepatobiliary Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, P.R. China
| | - Xialei Liu
- *Department of Hepatobiliary Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, P.R. China
| | - Yonghui Su
- †Department of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, P.R. China
| | - Fangen Kong
- ‡Department of Neurosurgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, P.R. China
| | - Xiaopeng Hong
- *Department of Hepatobiliary Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, P.R. China
| | - Zhidong Lin
- †Department of General Surgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, P.R. China
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Zhou P, Liu P, Zhang J. Long noncoding RNA RUSC1‑AS‑N promotes cell proliferation and metastasis through Wnt/β‑catenin signaling in human breast cancer. Mol Med Rep 2018; 19:861-868. [PMID: 30569097 PMCID: PMC6323231 DOI: 10.3892/mmr.2018.9763] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 10/03/2018] [Indexed: 12/29/2022] Open
Abstract
Breast cancer is one of the most frequently diagnosed cancers among females worldwide. Long noncoding RNAs (lncRNAs) have been revealed to serve significant roles in diagnosis and treatment of breast cancer. In the present study, the novel lncRNA RUSC1-AS-N was demonstrated to promote cell viability and metastasis. A total of 100 patients with breast cancer were recruited for this study and it was revealed that RUSC1-AS-N was upregulated in tumor tissues compared with in adjacent non-cancerous counterparts. In addition, using several breast cancer cell lines, it was demonstrated that the mRNA levels of RUSC1-AS-N were highest in the notably metastatic cell lines MDA-MB-231 and MDA-MB-468. Knockdown of RUSC1-AS-N in breast cancer cells inhibited cell proliferation in the colony formation and cell proliferation assays. Furthermore, depletion of RUSC1-AS-N suppressed cell metastasis, as revealed by wound-healing and western blot assays. In addition, the protein levels of Wnt1 and β-catenin were significantly decreased when RUSC1-AS-N was knocked down. However, Wnt signaling pathway activator Wnt agonist 1 reversed the effects of RUSC1-AS-N knockdown on cell proliferation and metastasis. The present study demonstrated that lncRNA RUSC1-AS-N promoted cell viability and metastasis via Wnt/β-catenin signaling in human breast cancer, which may indicate novel targets for the treatment of breast cancer in clinic.
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Affiliation(s)
- Peng Zhou
- The Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, P.R. China
| | - Peng Liu
- The Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, P.R. China
| | - Jin Zhang
- The Third Department of Breast Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin 300060, P.R. China
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Bin X, Hongjian Y, Xiping Z, Bo C, Shifeng Y, Binbin T. Research progresses in roles of LncRNA and its relationships with breast cancer. Cancer Cell Int 2018; 18:179. [PMID: 30459529 PMCID: PMC6233376 DOI: 10.1186/s12935-018-0674-0] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 11/01/2018] [Indexed: 12/21/2022] Open
Abstract
Some progresses have been made in research of long non-coding RNA (hereunder referred to as LncRNA) related to breast cancer. Lots of data about LncRNA transcription concerning breast cancer have been obtained from large-scale omics research (e.g. transcriptomes and chips). Some LncRNAs would become indices for detecting breast cancer and judging its development and prognosis. LncRNAs may affect genesis and development of breast cancer in multiple ways. Perhaps they could develop into potential targets for treating breast cancer if they are carcinogenic. Like those from other studies of breast cancer, many data gained from omics research remain to be validated by much experimental work. For instance, it is still necessary to demonstrate reliability of LncRNAs as indices for diagnosing breast cancer and judging its prognosis (particularly for various subtypes of breast cancer), effectiveness and feasibility of these genes for treating breast cancer as targets. In this paper, recent years’ literatures about LncRNAs which are related to breast cancer are summarized and sorted out to review the research progresses in relationships between LncRNAs and breast cancer.
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Affiliation(s)
- Xu Bin
- Department of Surgery, Zhejiang Rehabilitation Medical Center, Hangzhou, 310053 Zhejiang, China
| | - Yang Hongjian
- 2Department of Breast Surgery, Zhejiang Cancer Hospital, Banshanqiao, No. 38 Guangji Road, Hangzhou, 310022 Zhejiang China
| | - Zhang Xiping
- 2Department of Breast Surgery, Zhejiang Cancer Hospital, Banshanqiao, No. 38 Guangji Road, Hangzhou, 310022 Zhejiang China
| | - Chen Bo
- 3Department of Pathology, Zhejiang Cancer Hospital, Hangzhou, 310022 Zhejiang, China
| | - Yang Shifeng
- 3Department of Pathology, Zhejiang Cancer Hospital, Hangzhou, 310022 Zhejiang, China
| | - Tang Binbin
- 4Second Outpatient Department of Traditional Chinese Internal Medicine, Tongde Hospital of Zhejiang Province, Hangzhou, 310012 Zhejiang, China
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Li Q, Ma G, Sun S, Xu Y, Wang B. Polymorphism in the promoter region of lncRNA GAS5 is functionally associated with the risk of gastric cancer. Clin Res Hepatol Gastroenterol 2018; 42:478-482. [PMID: 29602737 DOI: 10.1016/j.clinre.2018.01.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 12/17/2017] [Accepted: 01/20/2018] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND AIMS Previous studies showed that down-regulation of GAS5 was involved in the development of gastric cancer (GC). However, the regulatory mechanism of down-expressed GAS5 in GC remains obscure. We aimed to investigate the role of rs145204276 of GAS5 in the development and metastasis process of GC. METHODS 853 GC patients and 954 healthy controls were recruited. The variant rs145204276 was genotyped and the Chi2 test was used to compare the frequency of the genotype and the allele between the patients and the controls. Odds ratio (OR) and 95% confidence intervals (95% CIs) were calculated to estimate the association of rs145204276 with the risk of development and metastasis of GC. RESULTS Patients were found to have significantly lower rate of genotype del/del than the controls (7.2% vs. 8.9%, P=0.016). The allele del was significantly associated with a decreased risk of GC (26.4% vs. 30.7%, P=0.005) with an OR of 0.81 (95% CI=0.70-0.94). Patients with allele del were less likely to develop lymph node metastasis (P=0.01), with an OR of 0.75 (95% CI=0.60-0.93). Comparably, rs145204276 was also significantly associated with a decreased risk of distant metastasis of GC (P=0.007; OR=0.55). CONCLUSION We confirmed that rs145204276 of GAS5 is a functional variant associated with the susceptibility and metastasis of GC. It plays a protective role in the development of GC possibly through the regulation of GAS5.
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Affiliation(s)
- Qianjun Li
- Department of gastroenterology, Huai'an first people's hospital, Nanjing medical university, Huai'an, China
| | - Gang Ma
- Department of gastroenterology, Huai'an first people's hospital, Nanjing medical university, Huai'an, China
| | - Suhua Sun
- Department of gastroenterology, Huai'an first people's hospital, Nanjing medical university, Huai'an, China
| | - Ying Xu
- Department of gastroenterology, Huai'an first people's hospital, Nanjing medical university, Huai'an, China
| | - Bingjian Wang
- Department of internal medicine, Huai'an first people's hospital, Nanjing medical university, Beijing road West 6, 223300 Huai'an, Jiangsu, China.
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Song C, Wang J, Ma Y, Yang Z, Dong D, Li H, Yang J, Huang Y, Plath M, Ma Y, Chen H. Linc-smad7 promotes myoblast differentiation and muscle regeneration via sponging miR-125b. Epigenetics 2018; 13:591-604. [PMID: 29912619 DOI: 10.1080/15592294.2018.1481705] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are involved in the regulation of skeletal muscle development. In the present study, differentially expressed lncRNAs were identified from RNA-seq data derived from myoblasts and myotubes. We conducted studies to elucidate the function and molecular mechanism of action of Linc-smad7 during skeletal muscle development. Our findings show that Linc-smad7 is upregulated during the early phase of myoblasts differentiation. In in vitro studies, we showed that overexpression of Linc-smad7 promoted the arrest of myoblasts in G1 phase, inhibited DNA replication, and induced myoblast differentiation. Our in vivo studies suggest that Linc-smad7 stimulates skeletal muscle regeneration in cardiotoxin-induced muscle injury. Mechanistically, Linc-smad7 overexpression increased smad7 and IGF2 protein levels. On the contrary, overexpression of miR-125b reduced smad7 and IGF2 protein levels. Results of RNA immunoprecipitation analysis and biotin-labeled miR-125b capture suggest that Linc-smad7 could act as a competing endogenous RNA (ceRNA) for miRNA-125b. Taken together, our findings suggest that the novel noncoding regulator Linc-smad7 regulates skeletal muscle development.
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Affiliation(s)
- Chengchuang Song
- a College of Animal Science and Technology , Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture , Yangling , Shaanxi , China
| | - Jian Wang
- a College of Animal Science and Technology , Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture , Yangling , Shaanxi , China
| | - Yilei Ma
- a College of Animal Science and Technology , Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture , Yangling , Shaanxi , China
| | - Zhaoxin Yang
- a College of Animal Science and Technology , Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture , Yangling , Shaanxi , China
| | - Dong Dong
- a College of Animal Science and Technology , Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture , Yangling , Shaanxi , China
| | - Hui Li
- a College of Animal Science and Technology , Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture , Yangling , Shaanxi , China
| | - Jiameng Yang
- a College of Animal Science and Technology , Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture , Yangling , Shaanxi , China
| | - Yongzhen Huang
- a College of Animal Science and Technology , Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture , Yangling , Shaanxi , China
| | - Martin Plath
- a College of Animal Science and Technology , Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture , Yangling , Shaanxi , China
| | - Yun Ma
- b Xinyang Normal University , Xinyang , Henan , China
| | - Hong Chen
- a College of Animal Science and Technology , Northwest A&F University, Shaanxi Key Laboratory of Molecular Biology for Agriculture , Yangling , Shaanxi , China
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Lu Z, Li Y, Che Y, Huang J, Sun S, Mao S, Lei Y, Li N, Sun N, He J. The TGFβ-induced lncRNA TBILA promotes non-small cell lung cancer progression in vitro and in vivo via cis-regulating HGAL and activating S100A7/JAB1 signaling. Cancer Lett 2018; 432:156-168. [PMID: 29908210 DOI: 10.1016/j.canlet.2018.06.013] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 06/08/2018] [Accepted: 06/09/2018] [Indexed: 02/03/2023]
Abstract
Long non-coding RNAs (lncRNAs) play critical roles in multiple cellular processes in non-small cell lung cancer (NSCLC); however, the involvement of lncRNAs in the transforming growth factor-beta (TGFβ) signaling pathway, the critical tumor cell epithelial-mesenchymal transition (EMT) and metastasis pathway, remains poorly understood. To address this issue, we compared the lncRNAs expression patterns of NSCLC cells treated with and without TGFβ1 treatment. We observed that one of the most prominent hits, TGFβ-induced lncRNA (TBILA), promoted NSCLC progression and was upregulated in tumor tissues. Upregulated TBILA promotes human germinal center-associated lymphoma (HGAL) expression by binding to the Smad transcription factor complex, thereby enhancing RhoA activation. In addition, TBILA induces the S100A7-c-Jun activation domain-binding protein 1 (JAB1) pathway by binding to nuclear S100A7 and enhances pro-survival pathways in NSCLC. These findings have provided us with a new perspective regarding the regulation of the TGFβ signaling pathway in NSCLC and suggest that the lncRNA TBILA can serve as a target for anticancer therapies.
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MESH Headings
- Animals
- Apoptosis
- COP9 Signalosome Complex/genetics
- COP9 Signalosome Complex/metabolism
- Carcinoma, Non-Small-Cell Lung/drug therapy
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Case-Control Studies
- Cell Movement
- Cell Proliferation
- Disease Progression
- Epithelial-Mesenchymal Transition
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- In Vitro Techniques
- Intracellular Signaling Peptides and Proteins/genetics
- Intracellular Signaling Peptides and Proteins/metabolism
- Lung Neoplasms/drug therapy
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Mice
- Mice, Inbred BALB C
- Mice, Inbred NOD
- Mice, Nude
- Mice, SCID
- Microfilament Proteins/genetics
- Microfilament Proteins/metabolism
- Peptide Hydrolases/genetics
- Peptide Hydrolases/metabolism
- RNA, Long Noncoding/genetics
- S100 Calcium Binding Protein A7/genetics
- S100 Calcium Binding Protein A7/metabolism
- Signal Transduction
- Transforming Growth Factor beta1/pharmacology
- Tumor Cells, Cultured
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Zhiliang Lu
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Yuan Li
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Yun Che
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Jianbing Huang
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Shouguo Sun
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Shuangshuang Mao
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Yuanyuan Lei
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Ning Li
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Nan Sun
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
| | - Jie He
- Department of Thoracic Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
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Kawasaki N, Miwa T, Hokari S, Sakurai T, Ohmori K, Miyauchi K, Miyazono K, Koinuma D. Long noncoding RNA NORAD regulates transforming growth factor-β signaling and epithelial-to-mesenchymal transition-like phenotype. Cancer Sci 2018; 109:2211-2220. [PMID: 29722104 PMCID: PMC6029837 DOI: 10.1111/cas.13626] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/16/2018] [Accepted: 04/21/2018] [Indexed: 12/12/2022] Open
Abstract
Long noncoding RNAs are involved in a variety of cellular functions. In particular, an increasing number of studies have revealed the functions of long noncoding RNA in various cancers; however, their precise roles and mechanisms of action remain to be elucidated. NORAD, a cytoplasmic long noncoding RNA, is upregulated by irradiation and functions as a potential oncogenic factor by binding and inhibiting Pumilio proteins (PUM1/PUM2). Here, we show that NORAD upregulates transforming growth factor-β (TGF-β) signaling and regulates TGF-β-induced epithelial-to-mesenchymal transition (EMT)-like phenotype, which is a critical step in the progression of lung adenocarcinoma, A549 cells. However, PUM1 does not appear to be involved in this process. We thus focused on importin β1 as a binding partner of NORAD and found that knockdown of NORAD partially inhibits the physical interaction of importin β1 with Smad3, inhibiting the nuclear accumulation of Smad complexes in response to TGF-β. Our findings may provide a new mechanism underlying the function of NORAD in cancer cells.
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Affiliation(s)
- Natsumi Kawasaki
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Toshiki Miwa
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Satoshi Hokari
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,Department of Respiratory Medicine and Infectious Diseases, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | - Tsubasa Sakurai
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kazuho Ohmori
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kensuke Miyauchi
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kohei Miyazono
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Daizo Koinuma
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Li Q, Zhang J, Zhou J, Yang B, Liu P, Cao L, Jing L, Liu H. lncRNAs are novel biomarkers for differentiating between cisplatin-resistant and cisplatin-sensitive ovarian cancer. Oncol Lett 2018; 15:8363-8370. [PMID: 29805570 PMCID: PMC5950027 DOI: 10.3892/ol.2018.8433] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 12/05/2017] [Indexed: 12/16/2022] Open
Abstract
Cisplatin-resistant ovarian cancer occurs in patients with ovarian cancer treated with cisplatin-based chemotherapy, which results in tumor progression during treatment, or recurrence of the tumor within 6 months of the treatment. It is vital that a novel biomarker for diagnosis, or an efficient therapeutic target of cisplatin-resistant ovarian is identified. Long non-coding (lnc)RNAs were determined to serve critical functions in a variety of distinct types of cancer, including ovarian cancer; however, there is limited knowledge regarding the differential expression levels of lncRNAs in cisplatin-resistant and cisplatin-sensitive ovarian cancer. Therefore, in the present study, the expression levels were determined for these cancer types. The lncRNA expression profile in cisplatin-resistant ovarian cancer was analyzed and compared with the results for cisplatin-sensitive ovarian cancer; gene ontology and pathway analysis demonstrated that the dysregulated lncRNAs participated in important biological processes. Subsequently, it was identified that these dysregulated lncRNAs were present in other ovarian cancer tissues and in SKOV3 ovarian cancer cells, as well as its cisplatin-resistant clone, SKOV3/CDDP. In addition, it was revealed that 8 lncRNAs (Enst0000435726, Enst00000585612, Enst00000566734, Enst00000453783, NR_023915, RP11_697E22.2, uc010jub.1 and tcons_00008505) were associated with cisplatin-resistant ovarian cancer. The present study may assist in improving understanding of the initiation and developmental mechanisms underlying cisplatin-resistant ovarian cancer, which could aid future studies in discovering potential biomarkers for diagnosis or therapeutic targets that may be used in clinical treatment.
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Affiliation(s)
- Qing Li
- Department of Pathology, Shanghai Pudong New Area People's Hospital, Shanghai 201299, P.R. China
| | - Juan Zhang
- Department of Pathology, Affiliated Nanjing Maternal and Child Health Hospital, Nanjing Medical University, Nanjing, Jiangsu 210004, P.R. China
| | - Juan Zhou
- Department of Pathology, Shanghai Pudong New Area People's Hospital, Shanghai 201299, P.R. China
| | - Binglie Yang
- Department of Gynecology and Obstetrics, Shanghai Pudong New Area People's Hospital, Shanghai 201299, P.R. China
| | - Pingping Liu
- Department of Gynecology and Obstetrics, Shanghai Pudong New Area People's Hospital, Shanghai 201299, P.R. China
| | - Lei Cao
- Department of Pathology, Shanghai Pudong New Area People's Hospital, Shanghai 201299, P.R. China
| | - Lei Jing
- Department of Pathology, Shanghai Pudong New Area People's Hospital, Shanghai 201299, P.R. China
| | - Hua Liu
- Department of Pathology, Shanghai Pudong New Area People's Hospital, Shanghai 201299, P.R. China
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40
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Janakiraman H, House RP, Gangaraju VK, Diehl JA, Howe PH, Palanisamy V. The Long (lncRNA) and Short (miRNA) of It: TGFβ-Mediated Control of RNA-Binding Proteins and Noncoding RNAs. Mol Cancer Res 2018; 16:567-579. [PMID: 29555893 DOI: 10.1158/1541-7786.mcr-17-0547] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 10/31/2017] [Accepted: 12/18/2017] [Indexed: 12/12/2022]
Abstract
RNA-binding proteins (RBP) and noncoding RNAs (ncRNA), such as long noncoding RNAs (lncRNA) and microRNAs (miRNA), control co- and posttranscriptional gene regulation (PTR). At the PTR level, RBPs and ncRNAs contribute to pre-mRNA processing, mRNA maturation, transport, localization, turnover, and translation. Deregulation of RBPs and ncRNAs promotes the onset of cancer progression and metastasis. Both RBPs and ncRNAs are altered by signaling cascades to cooperate or compete with each other to bind their nucleic acid targets. Most importantly, transforming growth factor-beta (TGFβ) signaling plays a significant role in controlling gene expression patterns by targeting RBPs and ncRNAs. Because of TGFβ signaling in cancer, RBP-RNA or RNA-RNA interactions are altered and cause enhanced cell growth and tumor cell dissemination. This review focuses on the emerging concepts of TGFβ signaling on posttranscriptional gene regulation and highlights the implications of RBPs and ncRNAs in cancer progression and metastasis. Mol Cancer Res; 16(4); 567-79. ©2018 AACR.
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Affiliation(s)
- Harinarayanan Janakiraman
- Department of Biochemistry and Molecular Biology, College of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Reniqua P House
- Department of Biochemistry and Molecular Biology, College of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Vamsi K Gangaraju
- Department of Biochemistry and Molecular Biology, College of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - J Alan Diehl
- Department of Biochemistry and Molecular Biology, College of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Philip H Howe
- Department of Biochemistry and Molecular Biology, College of Medicine, Medical University of South Carolina, Charleston, South Carolina
| | - Viswanathan Palanisamy
- Department of Biochemistry and Molecular Biology, College of Medicine, Medical University of South Carolina, Charleston, South Carolina.
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41
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Pancreatic tumor microenvironment confers highly malignant properties on pancreatic cancer cells. Oncogene 2018; 37:2757-2772. [PMID: 29511349 PMCID: PMC5966364 DOI: 10.1038/s41388-018-0144-0] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 12/12/2017] [Accepted: 12/26/2017] [Indexed: 12/18/2022]
Abstract
Tumor microenvironment plays a pivotal role in cancer progression; however, little is known regarding how differences in the microenvironment affect characteristics of cancer cells. Here, we investigated the effects of tumor microenvironment on cancer cells by using mouse tumor models. After three cycles of inoculation and extraction of human pancreatic cancer cells, including SUIT-2 and Panc-1 cells, from tumors, distinct cancer cell lines were established: 3P cells from the pancreas obtained using the orthotopic tumor model and 3sc cells from subcutaneous tissue obtained using the subcutaneous tumor model. On re-inoculation of these cells, the 3sc cells and, more prominently, the 3P cells, exhibited higher tumorigenic activity than the parental cells. The 3P cells specifically exhibited low E-cadherin expression and high invasiveness, suggesting that they were endowed with the highest malignant characteristics. RNA-sequence analysis demonstrated that distinct signaling pathways were activated in each cell line and that the 3P cells acquired a cancer stem cell-like phenotype. Among cancer stem cell-related genes, those specifically expressed in the 3P cells, including NES, may be potential new targets for cancer therapy. The mechanisms underlying the development of highly malignant cancer cell lines were investigated. Individual cell clones within the parental cells varied in tumor-forming ability, indicating the presence of cellular heterogeneity. Moreover, the tumor-forming ability and the gene expression profile of each cell clone were altered after serial orthotopic inoculations. The present study thus suggests that both selection and education processes by tumor microenvironment are involved in the development of highly malignant cancer cells.
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42
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Shu R, Xu Y, Tian Y, Zeng Y, Sun L, Gong F, Lei Y, Wang K, Luo H. Differential expression profiles of long noncoding RNA and mRNA in colorectal cancer tissues from patients with lung metastasis. Mol Med Rep 2018; 17:5666-5675. [PMID: 29436635 PMCID: PMC5866008 DOI: 10.3892/mmr.2018.8576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 11/21/2017] [Indexed: 11/18/2022] Open
Abstract
Lungs are the most common extra-abdominal site of metastasis of colorectal cancer (CRC), in which long noncoding RNA (lncRNA) may serve a role. In the present study, a high-throughput microarray assay was performed to detect lncRNA expression and identify novel targets for further study of lung metastasis in CRC. In the CRC tissues from patients with lung metastasis, 7,632 lncRNA (3,574 upregulated and 4,058 downregulated) and 6,185 mRNA (3,394 upregulated and 2,791 downregulated) were detected to be differentially expressed with a fold change ≥2 and P<0.05 compared with the CRC tissues without metastasis. A total of six differentially regulated lncRNA were confirmed by reverse transcription-quantitative polymerase chain reaction in 20 pairs of CRC samples. Furthermore, gene ontology and pathway analysis were conducted to predict the possible roles of the identified mRNA. The upregulated mRNA were associated with cell division (biological processes), protein kinase B binding (molecular functions) and cellular components. The downregulated mRNA were associated with cell adhesion, platelet-derived growth factor binding and membrane components. Pathway analysis determined that the upregulated mRNA were associated with the Wnt signaling pathway in the CRC tissues from patients with lung metastasis, while the downregulated mRNA were associated with the phosphoinositide 3-kinase/Akt signaling pathway. The results of the present study suggested that differentially expressed lncRNA may be associated with lung metastasis and may provide insights into the biology and prevention of lung metastasis.
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Affiliation(s)
- Ruo Shu
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Yu Xu
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Yan Tian
- Kunming Engineering Technology Center of Digestive Disease, Kunming, Yunnan 650032, P.R. China
| | - Yujian Zeng
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Liang Sun
- Kunming Engineering Technology Center of Digestive Disease, Kunming, Yunnan 650032, P.R. China
| | - Fangyou Gong
- Kunming Engineering Technology Center of Digestive Disease, Kunming, Yunnan 650032, P.R. China
| | - Yi Lei
- Kunming Engineering Technology Center of Digestive Disease, Kunming, Yunnan 650032, P.R. China
| | - Kunhua Wang
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
| | - Huayou Luo
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
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43
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Song J, Shi W. The concomitant apoptosis and EMT underlie the fundamental functions of TGF-β. Acta Biochim Biophys Sin (Shanghai) 2018; 50:91-97. [PMID: 29069287 DOI: 10.1093/abbs/gmx117] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Accepted: 10/01/2017] [Indexed: 01/08/2023] Open
Abstract
TGF-β's multipotent cellular effects and their relations are critical for TGF-β's pathophysiological functions. However, these effects may appear to be paradoxical in understanding TGF-β's functions. Apoptosis and epithelial-mesenchymal transition (EMT) are two fundamental events that are deeply linked to various physiological and disease-related processes. These two major cellular fates are subtly regulated and can be potently stimulated by TGF-β, which profoundly contribute to the biological roles of TGF-β. Moreover, these two events are also indirectly and directly correlated with TGF-β-mediated growth inhibition and are relevant to the current understanding of the roles of TGF-β in tumorigenesis and cancer progression. Although TGF-β-induced apoptosis and EMT can be singly independent cellular events, they can also be mutually exclusive but interrelated concomitant events in various cases. Thus, the modulation of apoptosis and EMT is essential for the seemingly paradoxical functions of TGF-β. However, the concomitant effect of TGF-β on apoptosis and EMT, the balance and regulated alterations of them are still been ignored or underestimated. This review focuses on the TGF-β-induced concomitant apoptosis and EMT. We aim to provide an insight in understanding their significance, balance, and modulation in TGF-β-mediated biological functions.
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Affiliation(s)
- Jianguo Song
- State Key Laboratory of Cell Biology, Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Weiwei Shi
- State Key Laboratory of Cell Biology, Innovation Center for Cell Signaling Network, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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44
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Diermeier SD, Chang KC, Freier SM, Song J, El Demerdash O, Krasnitz A, Rigo F, Bennett CF, Spector DL. Mammary Tumor-Associated RNAs Impact Tumor Cell Proliferation, Invasion, and Migration. Cell Rep 2017; 17:261-274. [PMID: 27681436 DOI: 10.1016/j.celrep.2016.08.081] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 08/05/2016] [Accepted: 08/23/2016] [Indexed: 02/07/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) represent the largest and most diverse class of non-coding RNAs, comprising almost 16,000 currently annotated transcripts in human and 10,000 in mouse. Here, we investigated the role of lncRNAs in mammary tumors by performing RNA-seq on tumor sections and organoids derived from MMTV-PyMT and MMTV-Neu-NDL mice. We identified several hundred lncRNAs that were overexpressed compared to normal mammary epithelium. Among these potentially oncogenic lncRNAs we prioritized a subset as Mammary Tumor Associated RNAs (MaTARs) and determined their human counterparts, hMaTARs. To functionally validate the role of MaTARs, we performed antisense knockdown and observed reduced cell proliferation, invasion, and/or organoid branching in a cancer-specific context. Assessing the expression of hMaTARs in human breast tumors revealed that 19 hMaTARs are significantly upregulated and many of these correlate with breast cancer subtype and/or hormone receptor status, indicating potential clinical relevance.
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Affiliation(s)
| | - Kung-Chi Chang
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA; Molecular and Cellular Biology Program, Stony Brook University, Stony Brook, NY 11794, USA
| | | | - Junyan Song
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA; Department of Applied Mathematics and Statistics, Stony Brook University, Stony Brook, NY 11794, USA
| | | | - Alexander Krasnitz
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA; Department of Applied Mathematics and Statistics, Stony Brook University, Stony Brook, NY 11794, USA
| | - Frank Rigo
- Ionis Pharmaceuticals, Carlsbad, CA 92010, USA
| | | | - David L Spector
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA; Molecular and Cellular Biology Program, Stony Brook University, Stony Brook, NY 11794, USA.
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45
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Exosomal lncRNA GAS5 regulates the apoptosis of macrophages and vascular endothelial cells in atherosclerosis. PLoS One 2017; 12:e0185406. [PMID: 28945793 PMCID: PMC5612752 DOI: 10.1371/journal.pone.0185406] [Citation(s) in RCA: 183] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 09/12/2017] [Indexed: 01/17/2023] Open
Abstract
Atherosclerosis is universally recognized as a chronic lipid-induced inflammation of the vessel wall. Oxidized low density lipoprotein (oxLDL) drives the onset of atherogenesis involving macrophages and endothelial cells (ECs). Our earlier work showed that expression of long noncoding RNA-growth arrest-specific 5 (lncRNA GAS5) was significantly increased in the plaque of atherosclerosis collected from patients and animal models. In this study, we found that knockdown of lncRNA GAS5 reduced the apoptosis of THP-1 cells treated with oxLDL. On the contrary, overexpression of lncRNA GAS5 significantly elevated the apoptosis of THP-1 cells after oxLDL stimulation. The expressions of apoptotic factors including Caspases were changed with lncRNA GAS5 levels. Moreover, lncRNA GAS5 was found in THP-1 derived-exosomes after oxLDL stimulation. Exosomes derived from lncRNA GAS5-overexpressing THP-1 cells enhanced the apoptosis of vascular endothelial cells after taking up these exosomes. However, exosomes shed by lncRNA GAS5 knocked-down THP-1 cells inhibited the apoptosis of endothelial cells. These findings reveal the function of lncRNA GAS5 in atherogenesis which regulates the apoptosis of macrophages and endothelial cells via exosomes and suggest that suppressing the lncRNA GAS5 might be an effective way for the therapy of atherosclerosis.
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46
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Wu X, Zhu H, Zhu S, Hao M, Li Q. lncRNA expression character associated with ischemic reperfusion injury. Mol Med Rep 2017; 16:3745-3752. [PMID: 28731128 PMCID: PMC5646951 DOI: 10.3892/mmr.2017.7051] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 03/30/2017] [Indexed: 12/22/2022] Open
Abstract
Ischemic reperfusion injury (IRI) contributes to morbidity and mortality worldwide and results in a poor outcome for patients suffering from myocardial infarction. Ischemic post‑conditioning (IPostC), consisting of one or several brief periods of ischemia and reperfusion, generates powerful protection against IRI. The mechanism of IPostC initiation and development has previously been investigated, however still remains to be fully elucidated. Notably, long non‑coding (lnc) RNAs have previously been demonstrated to be important in cardiovascular diseases. However, there is little information about the systematic analysis of IRI‑associated lncRNA expression signature. The present study used microarrays to analyze the lncRNA expression characters of ischemic IPostc (corresponding to IRI), and demonstrated that 2,292 lncRNAs were observed to be upregulated and 1,848 lncRNAs downregulated. Gene ontology (GO) and Pathway analysis subsequently demonstrated that dysregulated lncRNAs participated in various biological processes, which are upregulated or downregulated in IPostC tissues. Finally, the present study verified that AK144818, ENSMUST00000156637, ENSMUST00000118342, ENSMUST00000118149, uc008ane.1, ENSMUST00000164933, ENSMUST00000162347, ENSMUST00000135945, and ENSMUST00000176338, ENSMUST00000120587, ENDMUST00000155271, ENSMUST00000125121 and Uc008thl.1 were associated with the initiation and development of IPostC. The present study may aid in the understanding of the initiation and development mechanisms of IPostC and provide novel and potential biomarkers that may be used in the diagnosis or as therapeutic targets in the treatment of IRI.
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Affiliation(s)
- Xiaowei Wu
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Hongyi Zhu
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Suhua Zhu
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Maojuan Hao
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Qingping Li
- Department of Pharmacology, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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47
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Li JK, Chen C, Liu JY, Shi JZ, Liu SP, Liu B, Wu DS, Fang ZY, Bao Y, Jiang MM, Yuan JH, Qu L, Wang LH. Long noncoding RNA MRCCAT1 promotes metastasis of clear cell renal cell carcinoma via inhibiting NPR3 and activating p38-MAPK signaling. Mol Cancer 2017; 16:111. [PMID: 28659173 PMCID: PMC5490088 DOI: 10.1186/s12943-017-0681-0] [Citation(s) in RCA: 165] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 06/15/2017] [Indexed: 12/16/2022] Open
Abstract
Background Recent evidences showed that long noncoding RNAs (lncRNAs) are frequently dysregulated and play important roles in various cancers. Clear cell renal cell carcinoma (ccRCC) is one of the leading cause of cancer-related death, largely due to the metastasis of ccRCC. However, the clinical significances and roles of lncRNAs in metastatic ccRCC are still unknown. Methods lncRNA expression microarray analysis was performed to search the dysregulated lncRNA in metastatic ccRCC. quantitative real-time PCR was performed to measure the expression of lncRNAs in human ccRCC samples. Gain-of-function and loss-of-function experiments were performed to investigate the biological roles of lncRNAs on ccRCC cell proliferation, migration, invasion and in vivo metastasis. RNA pull-down, RNA immunoprecipitation, chromatin immunoprecipitation, and western blot were performed to explore the molecular mechanisms underlying the functions of lncRNAs. Results The microarray analysis identified a novel lncRNA termed metastatic renal cell carcinoma-associated transcript 1 (MRCCAT1), which is highly expressed in metastatic ccRCC tissues and associated with the metastatic properties of ccRCC. Multivariate Cox regression analysis revealed that MRCCAT1 is an independent prognostic factor for ccRCC patients. Overexpression of MRCCAT1 promotes ccRCC cells proliferation, migration, and invasion. Depletion of MRCCAT1 inhibites ccRCC cells proliferation, migration, and invasion in vitro, and ccRCC metastasis in vivo. Mechanistically, MRCCAT1 represses NPR3 transcription by recruiting PRC2 to NPR3 promoter, and subsequently activates p38-MAPK signaling pathway. Conclusions MRCCAT1 is a critical lncRNA that promotes ccRCC metastasis via inhibiting NPR3 and activating p38-MAPK signaling. Our results imply that MRCCAT1 could serve as a prognostic biomarker and therapeutic target for ccRCC. Electronic supplementary material The online version of this article (doi:10.1186/s12943-017-0681-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jia-Kuan Li
- Department of Urology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.,Department of Urology, The 517th Hospital of People's Liberation Army, Shanxi, 036301, China
| | - Cheng Chen
- Department of Medical Oncology, Jinling Hospital, Nanjing University Clinical School of Medicine, Nanjing, 210002, China
| | - Jia-Yi Liu
- Department of Urology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Jia-Zi Shi
- Department of Urology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Shu-Peng Liu
- Central laboratory, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Bing Liu
- Department of Urology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Deng-Shuang Wu
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Zi-Yu Fang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Yi Bao
- Department of Urology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China
| | - Ming-Ming Jiang
- Clinical laboratory, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Ji-Hang Yuan
- Department of Medical Genetics, Second Military Medical University, Shanghai, 200433, China.
| | - Le Qu
- Department of Urology, Jinling Hospital, Nanjing University Clinical School of Medicine, Nanjing, 210002, China.
| | - Lin-Hui Wang
- Department of Urology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai, 200003, China.
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48
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Arase M, Tamura Y, Kawasaki N, Isogaya K, Nakaki R, Mizutani A, Tsutsumi S, Aburatani H, Miyazono K, Koinuma D. Dynamics of chromatin accessibility during TGF-β-induced EMT of Ras-transformed mammary gland epithelial cells. Sci Rep 2017; 7:1166. [PMID: 28446749 PMCID: PMC5430828 DOI: 10.1038/s41598-017-00973-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 03/20/2017] [Indexed: 12/15/2022] Open
Abstract
Epithelial-mesenchymal transition (EMT) is induced by transforming growth factor (TGF)-β and facilitates tumor progression. We here performed global mapping of accessible chromatin in the mouse mammary gland epithelial EpH4 cell line and its Ras-transformed derivative (EpRas) using formaldehyde-assisted isolation of regulatory element (FAIRE)-sequencing. TGF-β and Ras altered chromatin accessibility either cooperatively or independently, and AP1, ETS, and RUNX binding motifs were enriched in the accessible chromatin regions of EpH4 and EpRas cells. Etv4, an ETS family oncogenic transcription factor, was strongly expressed and bound to more than one-third of the accessible chromatin regions in EpRas cells treated with TGF-β. While knockdown of Etv4 and another ETS family member Etv5 showed limited effects on the decrease in the E-cadherin abundance and stress fiber formation by TGF-β, gene ontology analysis showed that genes encoding extracellular proteins were most strongly down-regulated by Etv4 and Etv5 siRNAs. Accordingly, TGF-β-induced expression of Mmp13 and cell invasiveness were suppressed by Etv4 and Etv5 siRNAs, which were accompanied by the reduced chromatin accessibility at an enhancer region of Mmp13 gene. These findings suggest a mechanism of transcriptional regulation during Ras- and TGF-β-induced EMT that involves alterations of accessible chromatin, which are partly regulated by Etv4 and Etv5.
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Affiliation(s)
- Mayu Arase
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Yusuke Tamura
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Natsumi Kawasaki
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kazunobu Isogaya
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA
| | - Ryo Nakaki
- Genome Science Division, Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo, 153-8904, Japan
| | - Anna Mizutani
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Division of Molecular Biotherapy, Cancer Chemotherapy Center, Japanese Foundation for Cancer Research, Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Shuichi Tsutsumi
- Genome Science Division, Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo, 153-8904, Japan
| | - Hiroyuki Aburatani
- Genome Science Division, Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo, 153-8904, Japan
| | - Kohei Miyazono
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Daizo Koinuma
- Department of Molecular Pathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
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49
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Liu Y, He K, Hu Y, Guo X, Wang D, Shi W, Li J, Song J. YAP modulates TGF-β1-induced simultaneous apoptosis and EMT through upregulation of the EGF receptor. Sci Rep 2017; 7:45523. [PMID: 28425446 PMCID: PMC5397873 DOI: 10.1038/srep45523] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 02/28/2017] [Indexed: 02/08/2023] Open
Abstract
YAP is a transcriptional co-regulator that plays important roles in various patho-physiological processes, including the survival and death of cells. However, the effect of YAP on apoptosis and EMT, simultaneously mediated by TGF-β1, is not known. In this study, we demonstrate that YAP can modulate cell fate of apoptosis versus EMT by acting as a surviving factor. Overexpression of YAP in mouse mammary epithelial (NMuMG) cells suppressed TGF-β1-induced apoptosis, which shifted the cellular response predominantly toward EMT. In contrast, knockdown of YAP induced spontaneous apoptosis and enhanced TGF-β1-induced apoptosis, leading to a sharp decrease in the proportion of surviving cells that underwent EMT. These data suggest that YAP is an essential factor for modulating cellular responses to TGF-β1. Further investigation showed that YAP could regulate the expression level and activation of EGFR. Knockdown or inhibition of EGFR abolished the suppressive effect of YAP on apoptosis, whereas activation of EGFR by EGF significantly reduced apoptosis caused by the knockdown of YAP. The results indicate that EGFR and its activation are critical for YAP-mediated suppression of TGF-β1-induced apoptosis. This study provides a new understanding of the regulatory mechanism underlying the determination of cell fate in response to TGF-β1-mediated simultaneous apoptosis and EMT.
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Affiliation(s)
- Yi Liu
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Innovation Center for Cell Signaling Network, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Kai He
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Innovation Center for Cell Signaling Network, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Ying Hu
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Innovation Center for Cell Signaling Network, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Xiaojie Guo
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Innovation Center for Cell Signaling Network, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Dongmei Wang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Innovation Center for Cell Signaling Network, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Weiwei Shi
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Innovation Center for Cell Signaling Network, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Jingsong Li
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Innovation Center for Cell Signaling Network, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Jianguo Song
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Innovation Center for Cell Signaling Network, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, Shanghai, 200031, China
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50
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Zhu HY, Bai WD, Li C, Zheng Z, Guan H, Liu JQ, Yang XK, Han SC, Gao JX, Wang HT, Hu DH. Knockdown of lncRNA-ATB suppresses autocrine secretion of TGF-β2 by targeting ZNF217 via miR-200c in keloid fibroblasts. Sci Rep 2016; 6:24728. [PMID: 27090737 PMCID: PMC4835760 DOI: 10.1038/srep24728] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 04/04/2016] [Indexed: 01/19/2023] Open
Abstract
Abnormally high activation of transforming growth factor-β (TGF-β) signaling has been demonstrated to be involved in the initiation and progression of keloids. However, the functional role of long non-coding RNA (lncRNA)-activated by TGF-β (lncRNA-ATB) in keloids has not been documented. Here we investigated the role of lncRNA-ATB in the autocrine secretion of TGF-β in keloid fibroblasts (KFs) and explored the underlying molecular mechanism. Using immunohistochemistry and quantitative RT-PCR analysis, we showed that lncRNA-ATB and ZNF217, a transcriptional activator of TGF-β, were overexpressed and miR-200c, which targets ZNF217, was under-expressed in keloid tissue and keloid fibroblasts. Through gain- and loss-of-function studies, we demonstrated that knockdown of lncRNA-ATB decreased autocrine secretion of TGF-β2 and ZNF217 expression but upregulated expression of miR-200c in KFs. Stable downregulation of ZNF217 expression decreased the autocrine secretion of TGF-β2. miR-200c was endogenously associated with lncRNA-ATB, and inhibition of miR-200c overcame the decrease in ZNF217 expression in KFs. Taken together, these findings indicate that lncRNA-ATB governs the autocrine secretion of TGF-β2 in KFs, at least in part, by downregulating the expression level of ZNF217 via miR-200c, suggesting a signaling axis consisting of lncRNA-ATB/miR-200c/ZNF217/TGF-β2. These findings may provide potential biomarkers and targets for novel diagnostic and therapeutic approaches for keloids.
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Affiliation(s)
- Hua-Yu Zhu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Wen-Dong Bai
- Department of Hematology, Urumqi General Hospital of Chinese People's Liberation Army, Urumqi, 830000, Xinjiang, People's Republic of China
| | - Chao Li
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China.,Center of Military Burns and Plastic Surgery, Lanzhou General Hospital of Lanzhou Military Command of Chinese PLA, Lanzhou, 730050, People's Republic of China
| | - Zhao Zheng
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Hao Guan
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Jia-Qi Liu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Xue-Kang Yang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Shi-Chao Han
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Jian-Xin Gao
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Hong-Tao Wang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
| | - Da-Hai Hu
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi, People's Republic of China
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